Merge branch 'main' into dev

2025-05-08 15:15:02 -04:00 · 2023-04-13 14:50:45 +08:00 · 2023-04-13 14:50:45 +08:00 · 3a45262c65
commit 3a45262c65
parent e3ea35ba18 7d7cc99866
48 changed files with 1566 additions and 531 deletions
--- a/.github/workflows/docker-nightly-release.yml
+++ b/.github/workflows/docker-nightly-release.yml
@ -6,8 +6,26 @@ on:
    - cron: '0 0 * * *'

 jobs:
+  check_date:
+    runs-on: ubuntu-latest
+    name: Check latest commit
+    outputs:
+      should_run: ${{ steps.should_run.outputs.should_run }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: print latest_commit
+        run: echo ${{ github.sha }}
+
+      - id: should_run
+        continue-on-error: true
+        name: check latest commit is less than a day
+        if: ${{ github.event_name == 'schedule' }}
+        run: test -z $(git rev-list  --after="24 hours"  ${{ github.sha }}) && echo "::set-output name=should_run::false"
+
  ci:
    runs-on: ubuntu-latest
+    needs: check_date
+    if: ${{ needs.check_date.outputs.should_run != 'false' }}

    steps:
      - uses: actions/checkout@v3
--- a/.github/workflows/playwright.yml
+++ b/.github/workflows/playwright.yml
@ -0,0 +1,23 @@
+name: E2E tests
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+jobs:
+  test:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: corepack enable
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: 'pnpm'
+      - name: Install dependencies
+        run: pnpm install
+      - name: Install Playwright Browsers
+        run: pnpm exec playwright install --with-deps
+      - name: Run Playwright tests
+        run: pnpm exec playwright test
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@ -0,0 +1,48 @@
+name: Release new versions
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+jobs:
+  docker-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get release version
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
+
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            corentinth/it-tools:latest
+            corentinth/it-tools:${{ env.RELEASE_VERSION }}
+            ghcr.io/corentinth/it-tools:latest
+            ghcr.io/corentinth/it-tools:${{ env.RELEASE_VERSION}}
--- a/.gitignore
+++ b/.gitignore
@ -27,4 +27,7 @@ coverage
 *.sln
 *.sw?

-.env
+.env
+/test-results/
+/playwright-report/
+/playwright/.cache/
--- a/README.md
+++ b/README.md
@ -10,16 +10,25 @@ You have an idea of a tool? Submit a [feature request](https://github.com/Corent

 ## Self host

-Self host your own version of it-tools in your homelab with docker:
+Self host solutions for your homelab
+
+**From docker hub:**

 ```sh
-docker run -d \
-  --name it-tools \
-  --restart unless-stopped \
-  -p 8080:80 \
-  corentinth/it-tools:latest
+docker run -d --name it-tools --restart unless-stopped -p 8080:80 corentinth/it-tools:latest
 ```

+**From github packages:**
+
+```sh
+docker run -d --name it-tools --restart unless-stopped -p 8080:80 ghcr.io/corentinth/it-tools:latest
+```
+
+**Other solutions:**
+
+- [Tipi](https://www.runtipi.io/docs/apps-available)
+- [Unraid](https://unraid.net/community/apps?q=it-tools)
+
 ## Contribute

 ### Recommended IDE Setup
--- a/components.d.ts
+++ b/components.d.ts
@ -12,6 +12,7 @@ declare module '@vue/runtime-core' {
    CollapsibleToolMenu: typeof import('./src/components/CollapsibleToolMenu.vue')['default']
    ColoredCard: typeof import('./src/components/ColoredCard.vue')['default']
    FavoriteButton: typeof import('./src/components/FavoriteButton.vue')['default']
+    FormatTransformer: typeof import('./src/components/FormatTransformer.vue')['default']
    InputCopyable: typeof import('./src/components/InputCopyable.vue')['default']
    MenuIconItem: typeof import('./src/components/MenuIconItem.vue')['default']
    MenuLayout: typeof import('./src/components/MenuLayout.vue')['default']
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "it-tools",
-  "version": "2.19.0",
+  "version": "2023.4.13-dce9ff9",
  "description": "Collection of handy online tools for developers, with great UX. ",
  "keywords": [
    "productivity",
@ -25,6 +25,7 @@
    "preview": "vite preview --port 5050",
    "test": "npm run test:unit",
    "test:unit": "vitest --environment jsdom",
+    "test:e2e": "playwright test",
    "coverage": "vitest run --coverage",
    "typecheck": "vue-tsc --noEmit -p tsconfig.vitest.json --composite false",
    "lint": "eslint src --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --ignore-path .gitignore",
@ -48,7 +49,7 @@
    "colord": "^2.9.3",
    "composerize-ts": "^0.6.2",
    "cron-validator": "^1.3.1",
-    "cronstrue": "^2.24.0",
+    "cronstrue": "^2.26.0",
    "crypto-js": "^4.1.1",
    "date-fns": "^2.29.3",
    "figue": "^1.2.0",
@ -62,8 +63,8 @@
    "naive-ui": "^2.34.3",
    "netmask": "^2.0.2",
    "node-forge": "^1.3.1",
-    "oui": "^12.0.51",
-    "pinia": "^2.0.33",
+    "oui": "^12.0.52",
+    "pinia": "^2.0.34",
    "plausible-tracker": "^0.3.8",
    "qrcode": "^1.5.1",
    "randombytes": "^2.1.0",
@ -72,9 +73,11 @@
    "ua-parser-js": "^1.0.35",
    "uuid": "^8.3.2",
    "vue": "^3.2.47",
-    "vue-router": "^4.1.6"
+    "vue-router": "^4.1.6",
+    "yaml": "^2.2.1"
  },
  "devDependencies": {
+    "@playwright/test": "^1.32.3",
    "@rushstack/eslint-patch": "^1.2.0",
    "@types/bcryptjs": "^2.4.2",
    "@types/crypto-js": "^4.1.1",
@ -82,15 +85,15 @@
    "@types/lodash": "^4.14.192",
    "@types/mime-types": "^2.1.1",
    "@types/netmask": "^2.0.0",
-    "@types/node": "^16.18.22",
-    "@types/node-forge": "^1.3.1",
+    "@types/node": "^16.18.23",
+    "@types/node-forge": "^1.3.2",
    "@types/prettier": "^2.7.2",
    "@types/qrcode": "^1.5.0",
    "@types/randombytes": "^2.0.0",
    "@types/ua-parser-js": "^0.7.36",
    "@types/uuid": "^8.3.4",
-    "@typescript-eslint/parser": "^5.57.0",
-    "@unocss/eslint-config": "^0.50.6",
+    "@typescript-eslint/parser": "^5.58.0",
+    "@unocss/eslint-config": "^0.50.8",
    "@vitejs/plugin-vue": "^2.3.4",
    "@vitejs/plugin-vue-jsx": "^1.3.10",
    "@vue/eslint-config-prettier": "^7.1.0",
@ -98,9 +101,9 @@
    "@vue/test-utils": "^2.3.2",
    "@vue/tsconfig": "^0.1.3",
    "c8": "^7.13.0",
-    "eslint": "^8.36.0",
+    "eslint": "^8.38.0",
    "eslint-config-prettier": "^8.8.0",
-    "eslint-import-resolver-typescript": "^3.5.3",
+    "eslint-import-resolver-typescript": "^3.5.5",
    "eslint-plugin-import": "^2.27.5",
    "eslint-plugin-vue": "^8.7.1",
    "jsdom": "^19.0.0",
@ -109,7 +112,7 @@
    "standard-version": "^9.5.0",
    "start-server-and-test": "^1.15.4",
    "typescript": "~4.5.5",
-    "unocss": "^0.50.6",
+    "unocss": "^0.50.8",
    "unplugin-auto-import": "^0.15.2",
    "unplugin-vue-components": "^0.24.1",
    "vite": "^2.9.15",
--- a/playwright.config.ts
+++ b/playwright.config.ts
@ -0,0 +1,82 @@
+import { defineConfig, devices } from '@playwright/test';
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// require('dotenv').config();
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  testDir: './src',
+  testMatch: /.*\.e2e\.(spec\.)?ts/,
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Opt out of parallel tests on CI. */
+  workers: process.env.CI ? 1 : undefined,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: 'html',
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* Base URL to use in actions like `await page.goto('/')`. */
+    baseURL: 'http://127.0.0.1:3000',
+
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+
+    testIdAttribute: 'data-test-id',
+    locale: 'en-GB',
+    timezoneId: 'Europe/Paris',
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+
+    {
+      name: 'firefox',
+      use: { ...devices['Desktop Firefox'] },
+    },
+
+    {
+      name: 'webkit',
+      use: { ...devices['Desktop Safari'] },
+    },
+
+    /* Test against mobile viewports. */
+    // {
+    //   name: 'Mobile Chrome',
+    //   use: { ...devices['Pixel 5'] },
+    // },
+    // {
+    //   name: 'Mobile Safari',
+    //   use: { ...devices['iPhone 12'] },
+    // },
+
+    /* Test against branded browsers. */
+    // {
+    //   name: 'Microsoft Edge',
+    //   use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    // },
+    // {
+    //   name: 'Google Chrome',
+    //   use: { ..devices['Desktop Chrome'], channel: 'chrome' },
+    // },
+  ],
+
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: 'npm run dev',
+    url: 'http://127.0.0.1:3000',
+    reuseExistingServer: !process.env.CI,
+  },
+});
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
--- a/scripts/create-tool.mjs
+++ b/scripts/create-tool.mjs
@ -5,6 +5,7 @@ import { fileURLToPath } from 'url';
 const currentDirname = dirname(fileURLToPath(import.meta.url));

 const toolsDir = join(currentDirname, '..', 'src', 'tools');
+// eslint-disable-next-line no-undef
 const toolName = process.argv[2];

 if (!toolName) {
@ -73,6 +74,28 @@ import { expect, describe, it } from 'vitest';
 `,
 );

+createToolFile(
+  `${toolName}.e2e.spec.ts`,
+  `
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - ${toolNameTitleCase}', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/${toolName}');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('${toolNameTitleCase} - IT Tools');
+  });
+
+  test('', async ({ page }) => {
+
+  });
+});
+  
+`,
+);
+
 const toolsIndex = join(toolsDir, 'index.ts');
 const indexContent = await readFile(toolsIndex, { encoding: 'utf-8' }).then((r) => r.split('\n'));

--- a/src/components/FormatTransformer.vue
+++ b/src/components/FormatTransformer.vue
@ -0,0 +1,57 @@
+<template>
+  <n-form-item :label="inputLabel" v-bind="validationAttrs">
+    <n-input
+      ref="inputElement"
+      v-model:value="input"
+      :placeholder="inputPlaceholder"
+      type="textarea"
+      rows="20"
+      autocomplete="off"
+      autocorrect="off"
+      autocapitalize="off"
+      spellcheck="false"
+      :input-props="{ 'data-test-id': 'input' }"
+    />
+  </n-form-item>
+  <n-form-item :label="outputLabel">
+    <textarea-copyable :value="output" :language="outputLanguage" :follow-height-of="inputElement" />
+  </n-form-item>
+</template>
+
+<script setup lang="ts">
+import { useValidation, type UseValidationRule } from '@/composable/validation';
+import _ from 'lodash';
+
+const props = withDefaults(
+  defineProps<{
+    transformer?: (v: string) => string;
+    inputValidationRules?: UseValidationRule<string>[];
+    inputLabel?: string;
+    inputPlaceholder?: string;
+    inputDefault?: string;
+    outputLabel?: string;
+    outputLanguage?: string;
+  }>(),
+  {
+    transformer: _.identity,
+    inputValidationRules: () => [],
+    inputLabel: 'Input',
+    inputDefault: '',
+    inputPlaceholder: 'Input...',
+    outputLabel: 'Output',
+    outputLanguage: '',
+  },
+);
+
+const { transformer, inputValidationRules, inputLabel, outputLabel, outputLanguage, inputPlaceholder, inputDefault } =
+  toRefs(props);
+
+const inputElement = ref();
+
+const input = ref(inputDefault.value);
+const output = computed(() => transformer.value(input.value));
+
+const { attrs: validationAttrs } = useValidation({ source: input, rules: inputValidationRules.value });
+</script>
+
+<style scoped></style>
--- a/src/components/TextareaCopyable.vue
+++ b/src/components/TextareaCopyable.vue
@ -7,13 +7,13 @@
        :style="height ? `min-height: ${height - 40 /* card padding */ + 10 /* negative margin compensation */}px` : ''"
      >
        <n-config-provider :hljs="hljs">
-          <n-code :code="value" :language="language" :trim="false" />
+          <n-code :code="value" :language="language" :trim="false" data-test-id="area-content" />
        </n-config-provider>
      </n-scrollbar>
      <n-tooltip v-if="value" trigger="hover">
        <template #trigger>
          <div class="copy-button" :class="[copyPlacement]">
-            <n-button secondary circle size="large" @click="onCopyClicked">
+            <n-button circle secondary size="large" @click="onCopyClicked">
              <n-icon size="22" :component="Copy" />
            </n-button>
          </div>
--- a/src/composable/validation.ts
+++ b/src/composable/validation.ts
@ -3,7 +3,7 @@ import { reactive, watch, type Ref } from 'vue';

 type ValidatorReturnType = unknown;

-interface UseValidationRule<T> {
+export interface UseValidationRule<T> {
  validator: (value: T) => ValidatorReturnType;
  message: string;
 }
@ -20,12 +20,20 @@ export function isFalsyOrHasThrown(cb: () => ValidatorReturnType): boolean {
  }
 }

-type ValidationAttrs = {
+export type ValidationAttrs = {
  feedback: string;
  validationStatus: string | undefined;
 };

-export function useValidation<T>({ source, rules }: { source: Ref<T>; rules: UseValidationRule<T>[] }) {
+export function useValidation<T>({
+  source,
+  rules,
+  watch: watchRefs = [],
+}: {
+  source: Ref<T>;
+  rules: UseValidationRule<T>[];
+  watch?: Ref<unknown>[];
+}) {
  const state = reactive<{
    message: string;
    status: undefined | 'error';
@ -42,7 +50,7 @@ export function useValidation<T>({ source, rules }: { source: Ref<T>; rules: Use
  });

  watch(
-    [source],
+    [source, ...watchRefs],
    () => {
      state.message = '';
      state.status = undefined;
--- a/src/config.ts
+++ b/src/config.ts
@ -53,14 +53,6 @@ export const config = figue({
      default: false,
    },
  },
-  tools: {
-    newTools: {
-      doc: 'Tool names for tools flagged a as new',
-      format: 'array',
-      default: [],
-      env: 'VITE_NEW_TOOLS',
-    },
-  },
  showBanner: {
    doc: 'Show the banner',
    format: 'boolean',
--- a/src/layouts/base.layout.vue
+++ b/src/layouts/base.layout.vue
@ -1,13 +1,12 @@
 <script lang="ts" setup>
-import { NIcon, useThemeVars, type MenuGroupOption, type MenuOption } from 'naive-ui';
-import { computed, h } from 'vue';
-import { RouterLink, useRoute } from 'vue-router';
+import { NIcon, useThemeVars } from 'naive-ui';
+import { computed } from 'vue';
+import { RouterLink } from 'vue-router';
 import { Heart, Menu2, Home2 } from '@vicons/tabler';
 import { toolsByCategory } from '@/tools';
 import { useStyleStore } from '@/stores/style.store';
 import { config } from '@/config';
-import MenuIconItem from '@/components/MenuIconItem.vue';
-import type { Tool, ToolCategory } from '@/tools/tools.types';
+import type { ToolCategory } from '@/tools/tools.types';
 import { useToolStore } from '@/tools/tools.store';
 import { useTracker } from '@/modules/tracker/tracker.services';
 import CollapsibleToolMenu from '@/components/CollapsibleToolMenu.vue';
@ -17,7 +16,6 @@ import MenuLayout from '../components/MenuLayout.vue';
 import NavbarButtons from '../components/NavbarButtons.vue';

 const themeVars = useThemeVars();
-const route = useRoute();
 const styleStore = useStyleStore();
 const version = config.app.version;
 const commitSha = config.app.lastCommitSha.slice(0, 7);
--- a/src/pages/404.page.vue
+++ b/src/pages/404.page.vue
@ -1,23 +1,20 @@
 <script setup lang="ts">
+import { Coffee } from '@vicons/tabler';
 import { useHead } from '@vueuse/head';

 useHead({ title: 'Page not found - IT Tools' });
 </script>

 <template>
-  <div class="e404-wrapper">
-    <n-result status="404" title="404 Not Found" description="Sorry, this page does not seem to exist">
-      <template #footer>
-        <router-link to="/" #="{ navigate, href }" custom>
-          <n-button tag="a" :href="href" secondary type="success" @click="navigate"> Back home </n-button>
-        </router-link>
-      </template>
-    </n-result>
+  <div mt-20 flex flex-col items-center>
+    <n-icon :component="Coffee" size="100" depth="3" />
+
+    <n-h1 m-0 mt-3>404 Not Found</n-h1>
+    <n-text mt-4 block depth="3">Sorry, this page does not seem to exist</n-text>
+    <n-text mb-8 block depth="3">Maybe the cache is doing tricky things, try force-refreshing?</n-text>
+
+    <router-link to="/" #="{ navigate, href }" custom>
+      <n-button tag="a" :href="href" secondary @click="navigate"> Back home </n-button>
+    </router-link>
  </div>
 </template>
-
-<style scoped>
-.e404-wrapper {
-  padding-top: 150px;
-}
-</style>
--- a/src/tools/benchmark-builder/index.ts
+++ b/src/tools/benchmark-builder/index.ts
@ -8,4 +8,5 @@ export const tool = defineTool({
  keywords: ['benchmark', 'builder', 'execution', 'duration', 'mean', 'variance'],
  component: () => import('./benchmark-builder.vue'),
  icon: SpeedFilled,
+  createdAt: new Date('2023-04-05'),
 });
--- a/src/tools/date-time-converter/date-time-converter.e2e.spec.ts
+++ b/src/tools/date-time-converter/date-time-converter.e2e.spec.ts
@ -0,0 +1,33 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Date time converter - json to yaml', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/date-converter');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('Date-time converter - IT Tools');
+  });
+
+  test('Format is auto detected from a date and the date is correctly converted', async ({ page }) => {
+    const initialFormat = await page.getByTestId('date-time-converter-format-select').innerText();
+    expect(initialFormat.trim()).toEqual('Timestamp');
+
+    await page.getByTestId('date-time-converter-input').fill('2023-04-12T23:10:24+02:00');
+
+    const detectedFormat = await page.getByTestId('date-time-converter-format-select').innerText();
+    expect(detectedFormat.trim()).toEqual('ISO 8601');
+
+    expect((await page.getByTestId('JS locale date string').inputValue()).trim()).toEqual(
+      'Wed Apr 12 2023 23:10:24 GMT+0200 (Central European Summer Time)',
+    );
+    expect((await page.getByTestId('ISO 8601').inputValue()).trim()).toEqual('2023-04-12T23:10:24+02:00');
+    expect((await page.getByTestId('ISO 9075').inputValue()).trim()).toEqual('2023-04-12 23:10:24');
+    expect((await page.getByTestId('Unix timestamp').inputValue()).trim()).toEqual('1681333824');
+    expect((await page.getByTestId('RFC 7231').inputValue()).trim()).toEqual('Wed, 12 Apr 2023 21:10:24 GMT');
+    expect((await page.getByTestId('RFC 3339').inputValue()).trim()).toEqual('2023-04-12T23:10:24+02:00');
+    expect((await page.getByTestId('Timestamp').inputValue()).trim()).toEqual('1681333824000');
+    expect((await page.getByTestId('UTC format').inputValue()).trim()).toEqual('Wed, 12 Apr 2023 21:10:24 GMT');
+    expect((await page.getByTestId('Mongo ObjectID').inputValue()).trim()).toEqual('64371e400000000000000000');
+  });
+});
--- a/src/tools/date-time-converter/date-time-converter.models.test.ts
+++ b/src/tools/date-time-converter/date-time-converter.models.test.ts
@ -0,0 +1,142 @@
+import { describe, test, expect } from 'vitest';
+import {
+  isISO8601DateTimeString,
+  isISO9075DateString,
+  isRFC3339DateString,
+  isRFC7231DateString,
+  isUnixTimestamp,
+  isTimestamp,
+  isUTCDateString,
+  isMongoObjectId,
+} from './date-time-converter.models';
+
+describe('date-time-converter models', () => {
+  describe('isISO8601DateTimeString', () => {
+    test('should return true for valid ISO 8601 date strings', () => {
+      expect(isISO8601DateTimeString('2021-01-01T00:00:00.000Z')).toBe(true);
+      expect(isISO8601DateTimeString('2023-04-12T14:56:00+01:00')).toBe(true);
+      expect(isISO8601DateTimeString('20230412T145600+0100')).toBe(true);
+      expect(isISO8601DateTimeString('20230412T145600Z')).toBe(true);
+      expect(isISO8601DateTimeString('2016-02-01')).toBe(true);
+      expect(isISO8601DateTimeString('2016')).toBe(true);
+    });
+
+    test('should return false for invalid ISO 8601 date strings', () => {
+      expect(isISO8601DateTimeString()).toBe(false);
+      expect(isISO8601DateTimeString('')).toBe(false);
+      expect(isISO8601DateTimeString('qsdqsd')).toBe(false);
+      expect(isISO8601DateTimeString('2016-02-01-')).toBe(false);
+      expect(isISO8601DateTimeString('2021-01-01T00:00:00.')).toBe(false);
+    });
+  });
+
+  describe('isISO9075DateString', () => {
+    test('should return true for valid ISO 9075 date strings', () => {
+      expect(isISO9075DateString('2022-01-01 12:00:00Z')).toBe(true);
+      expect(isISO9075DateString('2022-01-01 12:00:00.123456Z')).toBe(true);
+      expect(isISO9075DateString('2022-01-01 12:00:00+01:00')).toBe(true);
+      expect(isISO9075DateString('2022-01-01 12:00:00-05:00')).toBe(true);
+    });
+
+    test('should return false for invalid ISO 9075 date strings', () => {
+      expect(isISO9075DateString('2022/01/01T12:00:00Z')).toBe(false);
+      expect(isISO9075DateString('2022-01-01 12:00:00.123456789Z')).toBe(false);
+      expect(isISO9075DateString('2022-01-01 12:00:00+1:00')).toBe(false);
+      expect(isISO9075DateString('2022-01-01 12:00:00-05:')).toBe(false);
+      expect(isISO9075DateString('2022-01-01 12:00:00-05:00:00')).toBe(false);
+      expect(isISO9075DateString('2022-01-01')).toBe(false);
+      expect(isISO9075DateString('12:00:00Z')).toBe(false);
+      expect(isISO9075DateString('2022-01-01T12:00:00Zfoo')).toBe(false);
+    });
+  });
+
+  describe('isRFC3339DateString', () => {
+    test('should return true for valid RFC 3339 date strings', () => {
+      expect(isRFC3339DateString('2022-01-01T12:00:00Z')).toBe(true);
+      expect(isRFC3339DateString('2022-01-01T12:00:00.123456789Z')).toBe(true);
+      expect(isRFC3339DateString('2022-01-01T12:00:00.123456789+01:00')).toBe(true);
+      expect(isRFC3339DateString('2022-01-01T12:00:00-05:00')).toBe(true);
+    });
+
+    test('should return false for invalid RFC 3339 date strings', () => {
+      expect(isRFC3339DateString('2022/01/01T12:00:00Z')).toBe(false);
+      expect(isRFC3339DateString('2022-01-01T12:00:00.123456789+1:00')).toBe(false);
+      expect(isRFC3339DateString('2022-01-01T12:00:00-05:')).toBe(false);
+      expect(isRFC3339DateString('2022-01-01T12:00:00-05:00:00')).toBe(false);
+      expect(isRFC3339DateString('2022-01-01')).toBe(false);
+      expect(isRFC3339DateString('12:00:00Z')).toBe(false);
+      expect(isRFC3339DateString('2022-01-01T12:00:00Zfoo')).toBe(false);
+    });
+  });
+
+  describe('isRFC7231DateString', () => {
+    test('should return true for valid RFC 7231 date strings', () => {
+      expect(isRFC7231DateString('Sun, 06 Nov 1994 08:49:37 GMT')).toBe(true);
+      expect(isRFC7231DateString('Tue, 22 Apr 2014 07:00:00 GMT')).toBe(true);
+    });
+
+    test('should return false for invalid RFC 7231 date strings', () => {
+      expect(isRFC7231DateString('06 Nov 1994 08:49:37 GMT')).toBe(false);
+      expect(isRFC7231DateString('Sun, 06 Nov 94 08:49:37 GMT')).toBe(false);
+      expect(isRFC7231DateString('Sun, 06 Nov 1994 8:49:37 GMT')).toBe(false);
+      expect(isRFC7231DateString('Sun, 06 Nov 1994 08:49:37 GMT-0500')).toBe(false);
+      expect(isRFC7231DateString('Sun, 06 November 1994 08:49:37 GMT')).toBe(false);
+      expect(isRFC7231DateString('Sunday, 06 Nov 1994 08:49:37 GMT')).toBe(false);
+      expect(isRFC7231DateString('06 Nov 1994')).toBe(false);
+    });
+  });
+
+  describe('isUnixTimestamp', () => {
+    test('should return true for valid Unix timestamps', () => {
+      expect(isUnixTimestamp('1649789394')).toBe(true);
+      expect(isUnixTimestamp('1234567890')).toBe(true);
+      expect(isUnixTimestamp('0')).toBe(true);
+    });
+
+    test('should return false for invalid Unix timestamps', () => {
+      expect(isUnixTimestamp('foo')).toBe(false);
+      expect(isUnixTimestamp('')).toBe(false);
+    });
+  });
+
+  describe('isTimestamp', () => {
+    test('should return true for valid Unix timestamps in milliseconds', () => {
+      expect(isTimestamp('1649792026123')).toBe(true);
+      expect(isTimestamp('1234567890000')).toBe(true);
+      expect(isTimestamp('0')).toBe(true);
+    });
+
+    test('should return false for invalid Unix timestamps in milliseconds', () => {
+      expect(isTimestamp('foo')).toBe(false);
+      expect(isTimestamp('')).toBe(false);
+    });
+  });
+
+  describe('isUTCDateString', () => {
+    test('should return true for valid UTC date strings', () => {
+      expect(isUTCDateString('Sun, 06 Nov 1994 08:49:37 GMT')).toBe(true);
+      expect(isUTCDateString('Tue, 22 Apr 2014 07:00:00 GMT')).toBe(true);
+    });
+
+    test('should return false for invalid UTC date strings', () => {
+      expect(isUTCDateString('06 Nov 1994 08:49:37 GMT')).toBe(false);
+      expect(isUTCDateString('16497920261')).toBe(false);
+      expect(isUTCDateString('foo')).toBe(false);
+      expect(isUTCDateString('')).toBe(false);
+    });
+  });
+
+  describe('isMongoObjectId', () => {
+    test('should return true for valid Mongo ObjectIds', () => {
+      expect(isMongoObjectId('507f1f77bcf86cd799439011')).toBe(true);
+      expect(isMongoObjectId('507f1f77bcf86cd799439012')).toBe(true);
+    });
+
+    test('should return false for invalid Mongo ObjectIds', () => {
+      expect(isMongoObjectId('507f1f77bcf86cd79943901')).toBe(false);
+      expect(isMongoObjectId('507f1f77bcf86cd79943901z')).toBe(false);
+      expect(isMongoObjectId('foo')).toBe(false);
+      expect(isMongoObjectId('')).toBe(false);
+    });
+  });
+});
--- a/src/tools/date-time-converter/date-time-converter.models.ts
+++ b/src/tools/date-time-converter/date-time-converter.models.ts
@ -0,0 +1,46 @@
+import _ from 'lodash';
+
+export {
+  isISO8601DateTimeString,
+  isISO9075DateString,
+  isRFC3339DateString,
+  isRFC7231DateString,
+  isUnixTimestamp,
+  isTimestamp,
+  isUTCDateString,
+  isMongoObjectId,
+};
+
+const ISO8601_REGEX =
+  /^([+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([.,]\d+(?!:))?)?(\17[0-5]\d([.,]\d+)?)?([zZ]|([+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
+const ISO9075_REGEX =
+  /^([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})(\.[0-9]{1,6})?(([+-])([0-9]{2}):([0-9]{2})|Z)?$/;
+
+const RFC3339_REGEX =
+  /^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(\.[0-9]{1,9})?(([+-])([0-9]{2}):([0-9]{2})|Z)$/;
+
+const RFC7231_REGEX = /^[A-Za-z]{3},\s[0-9]{2}\s[A-Za-z]{3}\s[0-9]{4}\s[0-9]{2}:[0-9]{2}:[0-9]{2}\sGMT$/;
+
+function createRegexMatcher(regex: RegExp) {
+  return (date?: string) => !_.isNil(date) && regex.test(date);
+}
+
+const isISO8601DateTimeString = createRegexMatcher(ISO8601_REGEX);
+const isISO9075DateString = createRegexMatcher(ISO9075_REGEX);
+const isRFC3339DateString = createRegexMatcher(RFC3339_REGEX);
+const isRFC7231DateString = createRegexMatcher(RFC7231_REGEX);
+const isUnixTimestamp = createRegexMatcher(/^[0-9]{1,10}$/);
+const isTimestamp = createRegexMatcher(/^[0-9]{1,13}$/);
+const isMongoObjectId = createRegexMatcher(/^[0-9a-fA-F]{24}$/);
+
+function isUTCDateString(date?: string) {
+  if (_.isNil(date)) {
+    return false;
+  }
+
+  try {
+    return new Date(date).toUTCString() === date;
+  } catch (_ignored) {
+    return false;
+  }
+}
--- a/src/tools/date-time-converter/date-time-converter.types.ts
+++ b/src/tools/date-time-converter/date-time-converter.types.ts
@ -0,0 +1,8 @@
+export type ToDateMapper = (value: string) => Date;
+
+export type DateFormat = {
+  name: string;
+  fromDate: (date: Date) => string;
+  toDate: (value: string) => Date;
+  formatMatcher: (dateString: string) => boolean;
+};
--- a/src/tools/date-time-converter/date-time-converter.vue
+++ b/src/tools/date-time-converter/date-time-converter.vue
@ -1,44 +1,38 @@
 <template>
  <div>
-    <n-card>
-      <n-space justify="center">
-        <n-form-item label="Use current date-time ?" label-placement="left" :show-feedback="false">
-          <n-switch v-model:value="useCurrentDate" />
-        </n-form-item>
-      </n-space>
-      <n-form-item
-        :feedback="inputInvalid ? 'Invalid date for the current format' : ''"
-        :validation-status="inputInvalid ? 'error' : undefined"
-      >
-        <n-input-group style="flex-grow: 1">
-          <n-select
-            v-model:value="inputFormat"
-            style="width: 200px"
-            :options="formats.map(({ name }, i) => ({ label: name, value: i }))"
-            :disabled="useCurrentDate"
-          />
+    <n-form-item :show-label="false" v-bind="validation.attrs">
+      <n-input-group>
+        <n-input
+          v-model:value="inputDate"
+          :on-input="onDateInputChanged"
+          placeholder="Put you date string here..."
+          clearable
+          :input-props="{ 'data-test-id': 'date-time-converter-input' }"
+        />

-          <n-input
-            v-model:value="inputDate"
-            :on-input="onDateInputChanged"
-            :disabled="useCurrentDate"
-            placeholder="Your date string..."
-          />
-        </n-input-group>
-      </n-form-item>
-      <n-divider style="margin-top: 0" />
-      <div v-for="{ name, fromDate } in formats" :key="name" style="margin: 5px 0">
-        <n-input-group>
-          <n-input-group-label style="flex: 0 0 170px"> {{ name }}: </n-input-group-label>
-          <input-copyable :value="fromDate(baseDate)" />
-        </n-input-group>
-      </div>
-    </n-card>
+        <n-select
+          v-model:value="formatIndex"
+          style="flex: 0 0 170px"
+          :options="formats.map(({ name }, i) => ({ label: name, value: i }))"
+          data-test-id="date-time-converter-format-select"
+        />
+      </n-input-group>
+    </n-form-item>
+    <n-divider style="margin-top: 0" />
+    <div v-for="{ name, fromDate } in formats" :key="name" mt-1>
+      <n-input-group>
+        <n-input-group-label style="flex: 0 0 170px"> {{ name }}: </n-input-group-label>
+        <input-copyable
+          :value="formatDateUsingFormatter(fromDate, normalizedDate)"
+          placeholder="Invalid date..."
+          :input-props="{ 'data-test-id': name }"
+        />
+      </n-input-group>
+    </div>
  </div>
 </template>

 <script setup lang="ts">
-import { useRafFn } from '@vueuse/core';
 import {
  formatISO,
  formatISO9075,
@ -47,95 +41,132 @@ import {
  fromUnixTime,
  getTime,
  getUnixTime,
-  isDate,
  parseISO,
  parseJSON,
+  isDate,
+  isValid,
 } from 'date-fns';
-import { ref } from 'vue';
-import InputCopyable from '../../components/InputCopyable.vue';
+import { withDefaultOnError } from '@/utils/defaults';
+import { useValidation } from '@/composable/validation';
+import type { DateFormat, ToDateMapper } from './date-time-converter.types';
+import {
+  isISO8601DateTimeString,
+  isISO9075DateString,
+  isRFC3339DateString,
+  isRFC7231DateString,
+  isTimestamp,
+  isUTCDateString,
+  isUnixTimestamp,
+  isMongoObjectId,
+} from './date-time-converter.models';

-const useCurrentDate = ref(true);
 const inputDate = ref('');
-const inputFormat = ref(6);
-const inputInvalid = ref(false);
-const baseDate = ref(new Date());

-useRafFn(() => {
-  if (useCurrentDate.value) {
-    baseDate.value = new Date();
+const toDate: ToDateMapper = (date) => new Date(date);
+
+function formatDateUsingFormatter(formatter: (date: Date) => string, date?: Date) {
+  if (!date || !validation.isValid) {
+    return '';
  }
-});

-function onDateInputChanged(value: string) {
-  const { toDate } = formats[inputFormat.value];
-  inputInvalid.value = false;
-
-  try {
-    const formatted: Date | string = toDate(value);
-
-    if (!isDate(formatted) || isNaN(formatted.getTime())) {
-      throw new Error('Invalid date');
-    }
-
-    baseDate.value = formatted;
-  } catch (_) {
-    inputInvalid.value = true;
-  }
+  return withDefaultOnError(() => formatter(date), '');
 }

-type Format = {
-  name: string;
-  fromDate: (date: Date) => string;
-  toDate: (value: string) => Date;
-};
-
-const toDate: Format['toDate'] = (date) => new Date(date);
-
-const formats: Format[] = [
+const formats: DateFormat[] = [
  {
    name: 'JS locale date string',
    fromDate: (date) => date.toString(),
    toDate,
+    formatMatcher: () => false,
  },
  {
    name: 'ISO 8601',
    fromDate: formatISO,
    toDate: parseISO,
+    formatMatcher: (date) => isISO8601DateTimeString(date),
  },
  {
    name: 'ISO 9075',
    fromDate: formatISO9075,
    toDate: parseISO,
+    formatMatcher: (date) => isISO9075DateString(date),
  },
  {
    name: 'RFC 3339',
    fromDate: formatRFC3339,
    toDate,
+    formatMatcher: (date) => isRFC3339DateString(date),
  },
  {
    name: 'RFC 7231',
    fromDate: formatRFC7231,
    toDate,
-  },
-  {
-    name: 'Timestamp',
-    fromDate: (date) => String(getTime(date)),
-    toDate: (ms) => parseJSON(+ms),
+    formatMatcher: (date) => isRFC7231DateString(date),
  },
  {
    name: 'Unix timestamp',
    fromDate: (date) => String(getUnixTime(date)),
    toDate: (sec) => fromUnixTime(+sec),
+    formatMatcher: (date) => isUnixTimestamp(date),
+  },
+  {
+    name: 'Timestamp',
+    fromDate: (date) => String(getTime(date)),
+    toDate: (ms) => parseJSON(+ms),
+    formatMatcher: (date) => isTimestamp(date),
  },
  {
    name: 'UTC format',
    fromDate: (date) => date.toUTCString(),
    toDate,
+    formatMatcher: (date) => isUTCDateString(date),
  },
  {
    name: 'Mongo ObjectID',
    fromDate: (date) => Math.floor(date.getTime() / 1000).toString(16) + '0000000000000000',
    toDate: (objectId) => new Date(parseInt(objectId.substring(0, 8), 16) * 1000),
+    formatMatcher: (date) => isMongoObjectId(date),
  },
 ];
+
+const formatIndex = ref(6);
+const now = useNow();
+
+const normalizedDate = computed(() => {
+  if (!inputDate.value) {
+    return now.value;
+  }
+
+  const { toDate } = formats[formatIndex.value];
+
+  try {
+    return toDate(inputDate.value);
+  } catch (_ignored) {
+    return undefined;
+  }
+});
+
+function onDateInputChanged(value: string) {
+  const matchingIndex = formats.findIndex(({ formatMatcher }) => formatMatcher(value));
+  if (matchingIndex !== -1) {
+    formatIndex.value = matchingIndex;
+  }
+}
+
+const validation = useValidation({
+  source: inputDate,
+  watch: [formatIndex],
+  rules: [
+    {
+      message: 'This date is invalid for this format',
+      validator: (value) =>
+        withDefaultOnError(() => {
+          if (value === '') return true;
+
+          const maybeDate = formats[formatIndex.value].toDate(value);
+          return isDate(maybeDate) && isValid(maybeDate);
+        }, false),
+    },
+  ],
+});
 </script>
--- a/src/tools/index.ts
+++ b/src/tools/index.ts
@ -1,6 +1,10 @@
 import { tool as base64FileConverter } from './base64-file-converter';
 import { tool as base64StringConverter } from './base64-string-converter';
 import { tool as basicAuthGenerator } from './basic-auth-generator';
+import { tool as yamlToJson } from './yaml-to-json-converter';
+import { tool as jsonToYaml } from './json-to-yaml-converter';
+import { tool as ipv6UlaGenerator } from './ipv6-ula-generator';
+import { tool as ipv4AddressConverter } from './ipv4-address-converter';
 import { tool as jsonToGo } from './json-to-go';
 import { tool as benchmarkBuilder } from './benchmark-builder';
 import { tool as userAgentParser } from './user-agent-parser';
@ -65,6 +69,8 @@ export const toolsByCategory: ToolCategory[] = [
      colorConverter,
      caseConverter,
      textToNatoAlphabet,
+      yamlToJson,
+      jsonToYaml,
    ],
  },
  {
@ -105,7 +111,7 @@ export const toolsByCategory: ToolCategory[] = [
  },
  {
    name: 'Network',
-    components: [ipv4SubnetCalculator, macAddressLookup],
+    components: [ipv4SubnetCalculator, ipv4AddressConverter, macAddressLookup, ipv6UlaGenerator],
  },
  {
    name: 'Math',
--- a/src/tools/ipv4-address-converter/index.ts
+++ b/src/tools/ipv4-address-converter/index.ts
@ -0,0 +1,12 @@
+import { Binary } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'Ipv4 address converter',
+  path: '/ipv4-address-converter',
+  description: 'Convert an ip address into decimal, binary, hexadecimal or event in ipv6',
+  keywords: ['ipv4', 'address', 'converter', 'decimal', 'hexadecimal', 'binary', 'ipv6'],
+  component: () => import('./ipv4-address-converter.vue'),
+  icon: Binary,
+  createdAt: new Date('2023-04-08'),
+});
--- a/src/tools/ipv4-address-converter/ipv4-address-converter.service.test.ts
+++ b/src/tools/ipv4-address-converter/ipv4-address-converter.service.test.ts
@ -0,0 +1,36 @@
+import { expect, describe, it } from 'vitest';
+import { isValidIpv4, ipv4ToInt } from './ipv4-address-converter.service';
+
+describe('ipv4-address-converter', () => {
+  describe('ipv4ToInt', () => {
+    it('should convert an IPv4 address to an integer', () => {
+      expect(ipv4ToInt({ ip: '192.168.0.1' })).toBe(3232235521);
+      expect(ipv4ToInt({ ip: '10.0.0.1' })).toBe(167772161);
+      expect(ipv4ToInt({ ip: '255.255.255.255' })).toBe(4294967295);
+    });
+  });
+
+  describe('isValidIpv4', () => {
+    it('should return true for a valid IP address', () => {
+      expect(isValidIpv4({ ip: '192.168.0.1' })).to.equal(true);
+      expect(isValidIpv4({ ip: '10.0.0.1' })).to.equal(true);
+    });
+
+    it('should return false for an invalid IP address', () => {
+      expect(isValidIpv4({ ip: '256.168.0.1' })).to.equal(false);
+      expect(isValidIpv4({ ip: '192.168.0' })).to.equal(false);
+      expect(isValidIpv4({ ip: '192.168.0.1.2' })).to.equal(false);
+      expect(isValidIpv4({ ip: '192.168.0.1.' })).to.equal(false);
+      expect(isValidIpv4({ ip: '.192.168.0.1' })).to.equal(false);
+      expect(isValidIpv4({ ip: '192.168.0.a' })).to.equal(false);
+    });
+
+    it('should return false for crap as input', () => {
+      expect(isValidIpv4({ ip: '' })).to.equal(false);
+      expect(isValidIpv4({ ip: ' ' })).to.equal(false);
+      expect(isValidIpv4({ ip: 'foo' })).to.equal(false);
+      expect(isValidIpv4({ ip: '-1' })).to.equal(false);
+      expect(isValidIpv4({ ip: '0' })).to.equal(false);
+    });
+  });
+});
--- a/src/tools/ipv4-address-converter/ipv4-address-converter.service.ts
+++ b/src/tools/ipv4-address-converter/ipv4-address-converter.service.ts
@ -0,0 +1,38 @@
+import _ from 'lodash';
+
+export { ipv4ToInt, ipv4ToIpv6, isValidIpv4 };
+
+function ipv4ToInt({ ip }: { ip: string }) {
+  if (!isValidIpv4({ ip })) {
+    return 0;
+  }
+
+  return ip
+    .trim()
+    .split('.')
+    .reduce((acc, part, index) => acc + Number(part) * Math.pow(256, 3 - index), 0);
+}
+
+function ipv4ToIpv6({ ip, prefix = '0000:0000:0000:0000:0000:ffff:' }: { ip: string; prefix?: string }) {
+  if (!isValidIpv4({ ip })) {
+    return '';
+  }
+
+  return (
+    prefix +
+    _.chain(ip)
+      .trim()
+      .split('.')
+      .map((part) => parseInt(part).toString(16).padStart(2, '0'))
+      .chunk(2)
+      .map((blocks) => blocks.join(''))
+      .join(':')
+      .value()
+  );
+}
+
+function isValidIpv4({ ip }: { ip: string }) {
+  const cleanIp = ip.trim();
+
+  return /^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$/.test(cleanIp);
+}
--- a/src/tools/ipv4-address-converter/ipv4-address-converter.vue
+++ b/src/tools/ipv4-address-converter/ipv4-address-converter.vue
@ -0,0 +1,64 @@
+<template>
+  <div>
+    <n-form-item label="An ipv4 address:" v-bind="validationAttrs">
+      <n-input v-model:value="rawIpAddress" placeholder="An ipv4 address..." />
+    </n-form-item>
+
+    <n-divider style="margin-top: 0" mt-0 />
+
+    <n-form-item
+      v-for="{ label, value } of convertedSections"
+      :key="label"
+      :label="label"
+      label-placement="left"
+      label-width="100"
+    >
+      <input-copyable
+        :value="validationAttrs.validationStatus === 'error' ? '' : value"
+        placeholder="Set a correct ipv4 address"
+      />
+    </n-form-item>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useValidation } from '@/composable/validation';
+import { convertBase } from '../integer-base-converter/integer-base-converter.model';
+import { ipv4ToInt, ipv4ToIpv6, isValidIpv4 } from './ipv4-address-converter.service';
+
+const rawIpAddress = useStorage('ipv4-converter:ip', '192.168.1.1');
+
+const convertedSections = computed(() => {
+  const ipInDecimal = ipv4ToInt({ ip: rawIpAddress.value });
+
+  return [
+    {
+      label: 'Decimal : ',
+      value: String(ipInDecimal),
+    },
+    {
+      label: 'Hexadecimal: ',
+      value: convertBase({ fromBase: 10, toBase: 16, value: String(ipInDecimal) }).toUpperCase(),
+    },
+    {
+      label: 'Binary: ',
+      value: convertBase({ fromBase: 10, toBase: 2, value: String(ipInDecimal) }),
+    },
+    {
+      label: 'Ipv6: ',
+      value: ipv4ToIpv6({ ip: rawIpAddress.value }),
+    },
+    {
+      label: 'Ipv6 (short): ',
+      value: ipv4ToIpv6({ ip: rawIpAddress.value, prefix: '::ffff:' }),
+    },
+  ];
+});
+
+const { attrs: validationAttrs } = useValidation({
+  source: rawIpAddress,
+  rules: [{ message: 'Invalid ipv4 address', validator: (ip) => isValidIpv4({ ip }) }],
+});
+</script>
+
+<style lang="less" scoped></style>
--- a/src/tools/ipv6-ula-generator/index.ts
+++ b/src/tools/ipv6-ula-generator/index.ts
@ -0,0 +1,12 @@
+import { BuildingFactory } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'IPv6 ULA generator',
+  path: '/ipv6-ula-generator',
+  description: 'Generate your own local, non-routable IP addresses on your network according to RFC4193.',
+  keywords: ['ipv6', 'ula', 'generator', 'rfc4193', 'network', 'private'],
+  component: () => import('./ipv6-ula-generator.vue'),
+  icon: BuildingFactory,
+  createdAt: new Date('2023-04-09'),
+});
--- a/src/tools/ipv6-ula-generator/ipv6-ula-generator.vue
+++ b/src/tools/ipv6-ula-generator/ipv6-ula-generator.vue
@ -0,0 +1,65 @@
+<template>
+  <div>
+    <n-space vertical :size="50">
+      <n-alert title="Info" type="info">
+        This tool uses the first method suggested by IETF using the current timestamp plus the mac address, sha1 hashed,
+        and the lower 40 bits to generate your random ULA.
+      </n-alert>
+
+      <n-form-item label="MAC address:" v-bind="validationAttrs">
+        <n-input
+          v-model:value="macAddress"
+          size="large"
+          placeholder="Type a MAC address"
+          clearable
+          autocomplete="off"
+          autocorrect="off"
+          autocapitalize="off"
+          spellcheck="false"
+        />
+      </n-form-item>
+    </n-space>
+
+    <div v-if="validationAttrs.validationStatus !== 'error'">
+      <n-input-group v-for="{ label, value } in calculatedSections" :key="label" style="margin: 5px 0">
+        <n-input-group-label style="flex: 0 0 160px"> {{ label }} </n-input-group-label>
+        <input-copyable :value="value" readonly />
+      </n-input-group>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { SHA1 } from 'crypto-js';
+import InputCopyable from '@/components/InputCopyable.vue';
+import { macAddressValidation } from '@/utils/macAddress';
+
+const macAddress = ref('20:37:06:12:34:56');
+const calculatedSections = computed(() => {
+  const timestamp = new Date().getTime();
+  const hex40bit = SHA1(timestamp + macAddress.value)
+    .toString()
+    .substring(30);
+
+  const ula = 'fd' + hex40bit.substring(0, 2) + ':' + hex40bit.substring(2, 6) + ':' + hex40bit.substring(6);
+
+  return [
+    {
+      label: 'IPv6 ULA:',
+      value: `${ula}::/48`,
+    },
+    {
+      label: 'First routable block:',
+      value: `${ula}:0::/64`,
+    },
+    {
+      label: 'Last routable block:',
+      value: `${ula}:ffff::/64`,
+    },
+  ];
+});
+
+const { attrs: validationAttrs } = macAddressValidation(macAddress);
+</script>
+
+<style lang="less" scoped></style>
--- a/src/tools/json-minify/json-minify.vue
+++ b/src/tools/json-minify/json-minify.vue
@ -1,57 +1,27 @@
 <template>
-  <n-form-item
-    label="Your raw json"
-    :feedback="rawJsonValidation.message"
-    :validation-status="rawJsonValidation.status"
-  >
-    <n-input
-      ref="inputElement"
-      v-model:value="rawJson"
-      placeholder="Paste your raw json here..."
-      type="textarea"
-      rows="20"
-      autocomplete="off"
-      autocorrect="off"
-      autocapitalize="off"
-      spellcheck="false"
-    />
-  </n-form-item>
-  <n-form-item label="Minify version of your JSON">
-    <textarea-copyable :value="cleanJson" language="json" :follow-height-of="inputElement" />
-  </n-form-item>
+  <format-transformer
+    input-label="Your raw json"
+    :input-default="defaultValue"
+    input-placeholder="Paste your raw json here..."
+    output-label="Minify version of your JSON"
+    output-language="json"
+    :input-validation-rules="rules"
+    :transformer="transformer"
+  />
 </template>

 <script setup lang="ts">
-import TextareaCopyable from '@/components/TextareaCopyable.vue';
-import { useValidation } from '@/composable/validation';
+import type { UseValidationRule } from '@/composable/validation';
 import { withDefaultOnError } from '@/utils/defaults';
 import JSON5 from 'json5';
-import { computed, ref } from 'vue';

-const inputElement = ref<HTMLElement>();
+const defaultValue = '{\n\t"hello": [\n\t\t"world"\n\t]\n}';
+const transformer = (value: string) => withDefaultOnError(() => JSON.stringify(JSON5.parse(value), null, 0), '');

-const rawJson = ref('{\n\t"hello": [\n\t\t"world"\n\t]\n}');
-const cleanJson = computed(() => withDefaultOnError(() => JSON.stringify(JSON5.parse(rawJson.value), null, 0), ''));
-
-const rawJsonValidation = useValidation({
-  source: rawJson,
-  rules: [
-    {
-      validator: (v) => v === '' || JSON5.parse(v),
-      message: 'Provided JSON is not valid.',
-    },
-  ],
-});
+const rules: UseValidationRule<string>[] = [
+  {
+    validator: (v: string) => v === '' || JSON5.parse(v),
+    message: 'Provided JSON is not valid.',
+  },
+];
 </script>
-
-<style lang="less" scoped>
-.result-card {
-  position: relative;
-
-  .copy-button {
-    position: absolute;
-    top: 10px;
-    right: 10px;
-  }
-}
-</style>
--- a/src/tools/json-to-yaml-converter/index.ts
+++ b/src/tools/json-to-yaml-converter/index.ts
@ -0,0 +1,12 @@
+import { Braces } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'JSON to YAML converter',
+  path: '/json-to-yaml-converter',
+  description: 'Simply convert JSON to YAML with this live online converter.',
+  keywords: ['yaml', 'to', 'json'],
+  component: () => import('./json-to-yaml.vue'),
+  icon: Braces,
+  createdAt: new Date('2023-04-10'),
+});
--- a/src/tools/json-to-yaml-converter/json-to-yaml.e2e.spec.ts
+++ b/src/tools/json-to-yaml-converter/json-to-yaml.e2e.spec.ts
@ -0,0 +1,19 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - json to yaml', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/json-to-yaml-converter');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('JSON to YAML converter - IT Tools');
+  });
+
+  test('json is parsed and output clean yaml', async ({ page }) => {
+    await page.getByTestId('input').fill('{"foo":"bar","list":["item",{"key":"value"}]}');
+
+    const generatedJson = await page.getByTestId('area-content').innerText();
+
+    expect(generatedJson.trim()).toEqual(`foo: bar\nlist:\n  - item\n  - key: value`.trim());
+  });
+});
--- a/src/tools/json-to-yaml-converter/json-to-yaml.vue
+++ b/src/tools/json-to-yaml-converter/json-to-yaml.vue
@ -0,0 +1,29 @@
+<template>
+  <format-transformer
+    input-label="Your JSON"
+    input-placeholder="Paste your JSON here..."
+    output-label="YAML from your JSON"
+    output-language="yaml"
+    :input-validation-rules="rules"
+    :transformer="transformer"
+  />
+</template>
+
+<script setup lang="ts">
+import type { UseValidationRule } from '@/composable/validation';
+import { isNotThrowing } from '@/utils/boolean';
+import { withDefaultOnError } from '@/utils/defaults';
+import { stringify } from 'yaml';
+import JSON5 from 'json5';
+
+const transformer = (value: string) => withDefaultOnError(() => stringify(JSON5.parse(value)), '');
+
+const rules: UseValidationRule<string>[] = [
+  {
+    validator: (value: string) => value === '' || isNotThrowing(() => stringify(JSON5.parse(value))),
+    message: 'Provided JSON is not valid.',
+  },
+];
+</script>
+
+<style lang="less" scoped></style>
--- a/src/tools/lorem-ipsum-generator/lorem-ipsum-generator.vue
+++ b/src/tools/lorem-ipsum-generator/lorem-ipsum-generator.vue
@ -18,7 +18,7 @@

    <br />

-    <n-input :value="loremIpsumText" type="textarea" placeholder="Your lorem ipsum..." autosize readonly />
+    <n-input :value="loremIpsumText" type="textarea" placeholder="Your lorem ipsum..." readonly autosize />
    <br />
    <br />
    <n-space justify="center">
--- a/src/tools/mac-address-lookup/index.ts
+++ b/src/tools/mac-address-lookup/index.ts
@ -2,10 +2,10 @@ import { Devices } from '@vicons/tabler';
 import { defineTool } from '../tool';

 export const tool = defineTool({
-  name: 'MAC adrdress lookup',
-  path: '/mac-adrdress-lookup',
+  name: 'MAC address lookup',
+  path: '/mac-address-lookup',
  description: 'Find the vendor and manufacturer of a device by its MAC address.',
-  keywords: ['mac', 'adrdress', 'lookup', 'vendor', 'parser', 'manufacturer'],
+  keywords: ['mac', 'address', 'lookup', 'vendor', 'parser', 'manufacturer'],
  component: () => import('./mac-address-lookup.vue'),
  icon: Devices,
  createdAt: new Date('2023-04-06'),
--- a/src/tools/mac-address-lookup/mac-address-lookup.vue
+++ b/src/tools/mac-address-lookup/mac-address-lookup.vue
@ -30,23 +30,15 @@
 </template>

 <script setup lang="ts">
-import { useValidation } from '@/composable/validation';
 import db from 'oui/oui.json';
+import { macAddressValidation } from '@/utils/macAddress';

 const getVendorValue = (address: string) => address.trim().replace(/[.:-]/g, '').toUpperCase().substring(0, 6);

 const macAddress = ref('20:37:06:12:34:56');
 const details = computed<string | undefined>(() => db[getVendorValue(macAddress.value)]);

-const { attrs: validationAttrs } = useValidation({
-  source: macAddress,
-  rules: [
-    {
-      message: 'Invalid MAC address',
-      validator: (value) => value.trim().match(/^([0-9A-Fa-f]{2}[:-]){2,5}([0-9A-Fa-f]{2})$/),
-    },
-  ],
-});
+const { attrs: validationAttrs } = macAddressValidation(macAddress);
 </script>

 <style lang="less" scoped></style>
--- a/src/tools/otp-code-generator-and-validator/otp-code-generator.e2e.spec.ts
+++ b/src/tools/otp-code-generator-and-validator/otp-code-generator.e2e.spec.ts
@ -0,0 +1,48 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - OTP code generator', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/otp-generator');
+  });
+
+  test('Has title', async ({ page }) => {
+    await expect(page).toHaveTitle('OTP code generator - IT Tools');
+  });
+
+  test('Secret hexa value is computed from provided secret', async ({ page }) => {
+    await page.getByPlaceholder('Paste your TOTP secret...').fill('ITTOOLS');
+
+    const secretInHex = await page.getByPlaceholder('Secret in hex will be displayed here').inputValue();
+
+    expect(secretInHex).toEqual('44e6e72e02');
+  });
+
+  test('OTP a generated from the provided secret', async ({ page }) => {
+    page.evaluate(() => {
+      Date.now = () => 1609477200000; //Jan 1, 2021
+    });
+
+    await page.getByPlaceholder('Paste your TOTP secret...').fill('ITTOOLS');
+
+    const previousOtp = await page.getByTestId('previous-otp').innerText();
+    const currentOtp = await page.getByTestId('current-otp').innerText();
+    const nextOtp = await page.getByTestId('next-otp').innerText();
+
+    expect(previousOtp.trim()).toEqual('028034');
+    expect(currentOtp.trim()).toEqual('162195');
+    expect(nextOtp.trim()).toEqual('452815');
+  });
+
+  test('You can generate a new random secret', async ({ page }) => {
+    const initialSecret = await page.getByPlaceholder('Paste your TOTP secret...').inputValue();
+    await page
+      .locator('div')
+      .filter({ hasText: /^Secret$/ })
+      .getByRole('button')
+      .click();
+
+    const newSecret = await page.getByPlaceholder('Paste your TOTP secret...').inputValue();
+
+    expect(newSecret).not.toEqual(initialSecret);
+  });
+});
--- a/src/tools/otp-code-generator-and-validator/token-display.vue
+++ b/src/tools/otp-code-generator-and-validator/token-display.vue
@ -8,13 +8,21 @@
    <n-input-group>
      <n-tooltip trigger="hover" placement="bottom">
        <template #trigger>
-          <n-button secondary @click.prevent="copyPrevious(tokens.previous)">{{ tokens.previous }}</n-button>
+          <n-button data-test-id="previous-otp" secondary @click.prevent="copyPrevious(tokens.previous)">{{
+            tokens.previous
+          }}</n-button>
        </template>
        <div>{{ previousCopied ? 'Copied !' : 'Copy previous OTP' }}</div>
      </n-tooltip>
      <n-tooltip trigger="hover" placement="bottom">
        <template #trigger>
-          <n-button tertiary type="primary" class="current-otp" @click.prevent="copyCurrent(tokens.current)">
+          <n-button
+            tertiary
+            type="primary"
+            data-test-id="current-otp"
+            class="current-otp"
+            @click.prevent="copyCurrent(tokens.current)"
+          >
            {{ tokens.current }}
          </n-button>
        </template>
@ -22,7 +30,9 @@
      </n-tooltip>
      <n-tooltip trigger="hover" placement="bottom">
        <template #trigger>
-          <n-button secondary @click.prevent="copyNext(tokens.next)">{{ tokens.next }}</n-button>
+          <n-button secondary data-test-id="next-otp" @click.prevent="copyNext(tokens.next)">{{
+            tokens.next
+          }}</n-button>
        </template>
        <div>{{ nextCopied ? 'Copied !' : 'Copy next OTP' }}</div>
      </n-tooltip>
--- a/src/tools/roman-numeral-converter/roman-numeral-converter.service.test.ts
+++ b/src/tools/roman-numeral-converter/roman-numeral-converter.service.test.ts
@ -13,14 +13,17 @@ describe('roman-numeral-converter', () => {
      expect(arabicToRoman(0.9)).toEqual('');
    });

+    it('should convert numbers greater than 3999 to empty string', () => {
+      expect(arabicToRoman(3999.1)).toEqual('');
+      expect(arabicToRoman(4000)).toEqual('');
+      expect(arabicToRoman(10000)).toEqual('');
+    });
+
    it('should convert floating points number to the lower integer in roman version', () => {
-      expect(arabicToRoman(-100)).toEqual('');
-      expect(arabicToRoman(-42)).toEqual('');
-      expect(arabicToRoman(-26)).toEqual('');
-      expect(arabicToRoman(-10)).toEqual('');
-      expect(arabicToRoman(0)).toEqual('');
-      expect(arabicToRoman(0.5)).toEqual('');
-      expect(arabicToRoman(0.9)).toEqual('');
+      expect(arabicToRoman(1.1)).toEqual('I');
+      expect(arabicToRoman(1.9)).toEqual('I');
+      expect(arabicToRoman(17.6)).toEqual('XVII');
+      expect(arabicToRoman(29.999)).toEqual('XXIX');
    });

    it('should convert positive integers to roman numbers', () => {
@ -67,7 +70,6 @@ describe('roman-numeral-converter', () => {
      expect(arabicToRoman(999)).toEqual('CMXCIX');
      expect(arabicToRoman(1000)).toEqual('M');
      expect(arabicToRoman(2000)).toEqual('MM');
-      expect(arabicToRoman(9000)).toEqual('MMMMMMMMM');
    });
  });
 });
--- a/src/tools/roman-numeral-converter/roman-numeral-converter.service.ts
+++ b/src/tools/roman-numeral-converter/roman-numeral-converter.service.ts
@ -1,5 +1,7 @@
+export const MIN_ARABIC_TO_ROMAN = 1;
+export const MAX_ARABIC_TO_ROMAN = 3999;
 export function arabicToRoman(num: number) {
-  if (num < 1) return '';
+  if (num < MIN_ARABIC_TO_ROMAN || num > MAX_ARABIC_TO_ROMAN) return '';

  const lookup: { [key: string]: number } = {
    M: 1000,
@ -26,7 +28,16 @@ export function arabicToRoman(num: number) {
  return roman;
 }

+const ROMAN_NUMBER_REGEX = new RegExp(/^M{0,3}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$/);
+
+export function isValidRomanNumber(romanNumber: string) {
+  return ROMAN_NUMBER_REGEX.test(romanNumber);
+}
+
 export function romanToArabic(s: string) {
+  if (!isValidRomanNumber(s)) {
+    return null;
+  }
  const map: { [key: string]: number } = { I: 1, V: 5, X: 10, L: 50, C: 100, D: 500, M: 1000 };
  return [...s].reduce((r, c, i, s) => (map[s[i + 1]] > map[c] ? r - map[c] : r + map[c]), 0);
 }
--- a/src/tools/roman-numeral-converter/roman-numeral-converter.vue
+++ b/src/tools/roman-numeral-converter/roman-numeral-converter.vue
@ -2,21 +2,29 @@
  <div>
    <n-card title="Arabic to roman">
      <n-space align="center" justify="space-between">
-        <n-input-number v-model:value="inputNumeral" :min="1" style="width: 200px" :show-button="false" />
+        <n-form-item v-bind="validationNumeral">
+          <n-input-number v-model:value="inputNumeral" :min="1" style="width: 200px" :show-button="false" />
+        </n-form-item>
        <div class="result">
          {{ outputRoman }}
        </div>
-        <n-button secondary autofocus @click="copyRoman"> Copy </n-button>
+        <n-button secondary autofocus :disabled="validationNumeral.validationStatus === 'error'" @click="copyRoman">
+          Copy
+        </n-button>
      </n-space>
    </n-card>
    <br />
    <n-card title="Roman to arabic">
      <n-space align="center" justify="space-between">
-        <n-input v-model:value="inputRoman" style="width: 200px" />
+        <n-form-item v-bind="validationRoman">
+          <n-input v-model:value="inputRoman" style="width: 200px" />
+        </n-form-item>
        <div class="result">
          {{ outputNumeral }}
        </div>
-        <n-button secondary autofocus @click="copyArabic"> Copy </n-button>
+        <n-button secondary autofocus :disabled="validationRoman.validationStatus === 'error'" @click="copyArabic">
+          Copy
+        </n-button>
      </n-space>
    </n-card>
  </div>
@ -25,14 +33,41 @@
 <script setup lang="ts">
 import { useCopy } from '@/composable/copy';
 import { ref, computed } from 'vue';
-import { arabicToRoman, romanToArabic } from './roman-numeral-converter.service';
+import { useValidation } from '@/composable/validation';
+import {
+  arabicToRoman,
+  romanToArabic,
+  MAX_ARABIC_TO_ROMAN,
+  MIN_ARABIC_TO_ROMAN,
+  isValidRomanNumber,
+} from './roman-numeral-converter.service';

 const inputNumeral = ref(42);
 const outputRoman = computed(() => arabicToRoman(inputNumeral.value));

+const { attrs: validationNumeral } = useValidation({
+  source: inputNumeral,
+  rules: [
+    {
+      validator: (value) => value >= MIN_ARABIC_TO_ROMAN && value <= MAX_ARABIC_TO_ROMAN,
+      message: `We can only convert numbers between ${MIN_ARABIC_TO_ROMAN.toLocaleString()} and ${MAX_ARABIC_TO_ROMAN.toLocaleString()}`,
+    },
+  ],
+});
+
 const inputRoman = ref('XLII');
 const outputNumeral = computed(() => romanToArabic(inputRoman.value));

+const { attrs: validationRoman } = useValidation({
+  source: inputRoman,
+  rules: [
+    {
+      validator: (value) => isValidRomanNumber(value),
+      message: `The input you entered is not a valid roman number`,
+    },
+  ],
+});
+
 const { copy: copyRoman } = useCopy({ source: outputRoman, text: 'Roman number copied to the clipboard' });
 const { copy: copyArabic } = useCopy({ source: outputNumeral, text: 'Arabic number copied to the clipboard' });
 </script>
--- a/src/tools/token-generator/token-generator.e2e.spec.ts
+++ b/src/tools/token-generator/token-generator.e2e.spec.ts
@ -0,0 +1,19 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - Token generator', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/token-generator');
+  });
+
+  test('Has title', async ({ page }) => {
+    await expect(page).toHaveTitle('Token generator - IT Tools');
+  });
+
+  test('New token on refresh', async ({ page }) => {
+    const initialToken = await page.getByPlaceholder('The token...').inputValue();
+    await page.getByRole('button', { name: 'Refresh' }).click();
+    const newToken = await page.getByPlaceholder('The token...').inputValue();
+
+    expect(newToken).not.toEqual(initialToken);
+  });
+});
--- a/src/tools/tool.ts
+++ b/src/tools/tool.ts
@ -1,17 +1,10 @@
-import { config } from '@/config';
 import { isAfter, subWeeks } from 'date-fns';
 import type { Tool } from './tools.types';

 type WithOptional<T, K extends keyof T> = Omit<T, K> & Partial<Pick<T, K>>;

-export function defineTool(
-  tool: WithOptional<Tool, 'isNew'>,
-  { newTools }: { newTools: string[] } = { newTools: config.tools.newTools },
-) {
-  const isInNewToolConfig = newTools.includes(tool.name);
-  const isRecentTool = tool.createdAt ? isAfter(tool.createdAt, subWeeks(new Date(), 2)) : false;
-
-  const isNew = isInNewToolConfig || isRecentTool;
+export function defineTool(tool: WithOptional<Tool, 'isNew'>) {
+  const isNew = tool.createdAt ? isAfter(tool.createdAt, subWeeks(new Date(), 2)) : false;

  return {
    isNew,
--- a/src/tools/yaml-to-json-converter/index.ts
+++ b/src/tools/yaml-to-json-converter/index.ts
@ -0,0 +1,12 @@
+import { AlignJustified } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'YAML to JSON converter',
+  path: '/yaml-to-json-converter',
+  description: 'Simply convert YAML to JSON with this live online converter.',
+  keywords: ['yaml', 'to', 'json'],
+  component: () => import('./yaml-to-json.vue'),
+  icon: AlignJustified,
+  createdAt: new Date('2023-04-10'),
+});
--- a/src/tools/yaml-to-json-converter/yaml-to-json.e2e.spec.ts
+++ b/src/tools/yaml-to-json-converter/yaml-to-json.e2e.spec.ts
@ -0,0 +1,31 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - Yaml to json', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/yaml-to-json-converter');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('YAML to JSON converter - IT Tools');
+  });
+
+  test('Yaml is parsed and output clean json', async ({ page }) => {
+    await page.getByTestId('input').fill('foo: bar\nlist:\n  - item\n  - key: value');
+
+    const generatedJson = await page.getByTestId('area-content').innerText();
+
+    expect(generatedJson.trim()).toEqual(
+      `
+{
+   "foo": "bar",
+   "list": [
+      "item",
+      {
+         "key": "value"
+      }
+   ]
+}
+   `.trim(),
+    );
+  });
+});
--- a/src/tools/yaml-to-json-converter/yaml-to-json.vue
+++ b/src/tools/yaml-to-json-converter/yaml-to-json.vue
@ -0,0 +1,32 @@
+<template>
+  <format-transformer
+    input-label="Your YAML"
+    input-placeholder="Paste your yaml here..."
+    output-label="JSON from your YAML"
+    output-language="json"
+    :input-validation-rules="rules"
+    :transformer="transformer"
+  />
+</template>
+
+<script setup lang="ts">
+import type { UseValidationRule } from '@/composable/validation';
+import { isNotThrowing } from '@/utils/boolean';
+import { withDefaultOnError } from '@/utils/defaults';
+import { parse as parseYaml } from 'yaml';
+
+const transformer = (value: string) =>
+  withDefaultOnError(() => {
+    const obj = parseYaml(value);
+    return obj ? JSON.stringify(obj, null, 3) : '';
+  }, '');
+
+const rules: UseValidationRule<string>[] = [
+  {
+    validator: (value: string) => isNotThrowing(() => parseYaml(value)),
+    message: 'Provided YAML is not valid.',
+  },
+];
+</script>
+
+<style lang="less" scoped></style>
--- a/src/utils/macAddress.ts
+++ b/src/utils/macAddress.ts
@ -0,0 +1,16 @@
+import { useValidation } from '@/composable/validation';
+import type { Ref } from 'vue';
+
+function macAddressValidation(value: Ref) {
+  return useValidation({
+    source: value,
+    rules: [
+      {
+        message: 'Invalid MAC address',
+        validator: (value) => value.trim().match(/^([0-9A-Fa-f]{2}[:-]){2,5}([0-9A-Fa-f]{2})$/),
+      },
+    ],
+  });
+}
+
+export { macAddressValidation };
--- a/vitest.config.ts
+++ b/vitest.config.ts
@ -0,0 +1,13 @@
+import { configDefaults, defineConfig } from 'vitest/config';
+import path from 'path';
+
+export default defineConfig({
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+  test: {
+    exclude: [...configDefaults.exclude, '**/*.e2e.spec.ts'],
+  },
+});