it-tools/src/tools/base64-converter/base64-converter.vue

<template>
  <n-card title="Text to base64">
    <n-input v-model:value="textInput" type="textarea" placeholder="Put your string here..." />
    <n-input :value="textBase64" type="textarea" readonly />
    <n-space justify="center">
      <n-button @click="copyTextBase64()" secondary>Copy</n-button>
    </n-space>
  </n-card>

  <n-card title="File to base64">
    <n-upload :show-file-list="true" :on-before-upload="onUpload" list-type="image" v-model:file-list="fileList">
      <n-upload-dragger>
        <div style="margin-bottom: 12px">
          <n-icon size="35" :depth="3" :component="Upload" />
        </div>
        <n-text style="font-size: 14px">
          Click or drag a file to this area to upload
        </n-text>
      </n-upload-dragger>
    </n-upload>

    <n-input :value="fileBase64" type="textarea" readonly />
    <n-space justify="center">
      <n-button @click="copyFileBase64()" secondary>Copy</n-button>
    </n-space>
  </n-card>

</template>

<script setup lang="ts">
import { useCopy } from '@/composable/copy'
import { useBase64 } from '@vueuse/core'
import { Upload } from '@vicons/tabler'
import { ref, type Ref } from 'vue'
import type { UploadFileInfo } from 'naive-ui';

const textInput = ref('')
const { base64: textBase64 } = useBase64(textInput)
const { copy: copyTextBase64 } = useCopy({ source: textBase64, text: 'Base64 string copied to the clipboard' })

const fileList = ref()
const fileInput = ref() as Ref<File>
const { base64: fileBase64 } = useBase64(fileInput)
const { copy: copyFileBase64 } = useCopy({ source: fileBase64, text: 'Base64 string copied to the clipboard' })


function onUpload({ file: { file }, }: { file: UploadFileInfo }) {
  if (file) {
    fileList.value = []
    fileInput.value = file
  }
}

</script>

<style lang="less" scoped>
.n-input,
.n-upload,
.n-card {
  margin-bottom: 15px;
}

::v-deep(.n-upload-trigger) {
  width: 100%;
}
</style>