diff --git a/src/core/operations/Filter.mjs b/src/core/operations/Filter.mjs
deleted file mode 100644
index 904bb65f..00000000
--- a/src/core/operations/Filter.mjs
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import Utils from "../Utils.mjs";
-import {INPUT_DELIM_OPTIONS} from "../lib/Delim.mjs";
-import OperationError from "../errors/OperationError.mjs";
-import XRegExp from "xregexp";
-
-/**
- * Filter operation
- */
-class Filter extends Operation {
-
-    /**
-     * Filter constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "Filter";
-        this.module = "Regex";
-        this.description = "Splits up the input using the specified delimiter and then filters each branch based on a regular expression.";
-        this.inputType = "string";
-        this.outputType = "string";
-        this.args = [
-            {
-                "name": "Delimiter",
-                "type": "option",
-                "value": INPUT_DELIM_OPTIONS
-            },
-            {
-                "name": "Regex",
-                "type": "string",
-                "value": ""
-            },
-            {
-                "name": "Invert condition",
-                "type": "boolean",
-                "value": false
-            }
-        ];
-    }
-
-    /**
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        const delim = Utils.charRep(args[0]),
-            reverse = args[2];
-        let regex;
-
-        try {
-            regex = new XRegExp(args[1]);
-        } catch (err) {
-            throw new OperationError(`Invalid regex. Details: ${err.message}`);
-        }
-
-        const regexFilter = function(value) {
-            return reverse ^ regex.test(value);
-        };
-
-        return input.split(delim).filter(regexFilter).join(delim);
-    }
-
-}
-
-export default Filter;