diff --git a/package-lock.json b/package-lock.json
index 873938b..b6e640a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4341,11 +4341,6 @@
         "pinkie-promise": "2.0.1"
       }
     },
-    "google-code-prettify": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/google-code-prettify/-/google-code-prettify-1.0.5.tgz",
-      "integrity": "sha1-n0d/Ik2/piNy5e+AOn4VdBBAAIQ="
-    },
     "graceful-fs": {
       "version": "4.1.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
@@ -4745,6 +4740,11 @@
       "integrity": "sha1-k0EP0hsAlzUVH4howvJx80J+I/0=",
       "dev": true
     },
+    "highlight.js": {
+      "version": "9.12.0",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.12.0.tgz",
+      "integrity": "sha1-5tnb5Xy+/mB1HwKvM2GVhwyQwB4="
+    },
     "hmac-drbg": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
diff --git a/package.json b/package.json
index 51ab4b6..47f13f0 100644
--- a/package.json
+++ b/package.json
@@ -80,7 +80,7 @@
     "esprima": "^4.0.0",
     "exif-parser": "^0.1.12",
     "file-saver": "^1.3.3",
-    "google-code-prettify": "^1.0.5",
+    "highlight.js": "^9.12.0",
     "jquery": "^3.2.1",
     "js-crc": "^0.2.0",
     "js-sha3": "^0.7.0",
diff --git a/src/core/config/OperationConfig.js b/src/core/config/OperationConfig.js
index dd83a15..42bb2f9 100755
--- a/src/core/config/OperationConfig.js
+++ b/src/core/config/OperationConfig.js
@@ -3462,15 +3462,10 @@ const OperationConfig = {
         outputType: "html",
         args: [
             {
-                name: "Language/File extension",
+                name: "Language",
                 type: "option",
                 value: Code.LANGUAGES
             },
-            {
-                name: "Display line numbers",
-                type: "boolean",
-                value: Code.LINE_NUMS
-            }
         ]
     },
     "TCP/IP Checksum": {
diff --git a/src/core/config/modules/Code.js b/src/core/config/modules/Code.js
index c480724..72ddbe3 100644
--- a/src/core/config/modules/Code.js
+++ b/src/core/config/modules/Code.js
@@ -11,7 +11,7 @@ import Code from "../../operations/Code.js";
  *  - xmldom
  *  - xpath
  *  - jpath
- *  - googlecodeprettify
+ *  - highlight.js
  *
  * @author n1474335 [n1474335@gmail.com]
  * @copyright Crown Copyright 2017
diff --git a/src/core/operations/Code.js b/src/core/operations/Code.js
index d6904e0..42a9bbb 100755
--- a/src/core/operations/Code.js
+++ b/src/core/operations/Code.js
@@ -1,12 +1,10 @@
 import {camelCase, kebabCase, snakeCase} from "lodash";
-
-import Utils from "../Utils.js";
 import vkbeautify from "vkbeautify";
 import {DOMParser} from "xmldom";
 import xpath from "xpath";
 import jpath from "jsonpath";
 import nwmatcher from "nwmatcher";
-import prettyPrintOne from "imports-loader?window=>global!exports-loader?prettyPrintOne!google-code-prettify/bin/prettify.min.js";
+import hljs from "highlight.js";
 
 
 /**
@@ -24,12 +22,7 @@ const Code = {
      * @constant
      * @default
      */
-    LANGUAGES: ["default-code", "default-markup", "bash", "bsh", "c", "cc", "coffee", "cpp", "cs", "csh", "cv", "cxx", "cyc", "htm", "html", "in.tag", "java", "javascript", "js", "json", "m", "mxml", "perl", "pl", "pm", "py", "python", "rb", "rc", "rs", "ruby", "rust", "sh", "uq.val", "xhtml", "xml", "xsl"],
-    /**
-     * @constant
-     * @default
-     */
-    LINE_NUMS: false,
+    LANGUAGES: ["auto detect"].concat(hljs.listLanguages()),
 
     /**
      * Syntax highlighter operation.
@@ -39,9 +32,13 @@ const Code = {
      * @returns {html}
      */
     runSyntaxHighlight: function(input, args) {
-        let language = args[0],
-            lineNums = args[1];
-        return "<code class='prettyprint'>" + prettyPrintOne(Utils.escapeHtml(input), language, lineNums) + "</code>";
+        const language = args[0];
+
+        if (language === "auto detect") {
+            return hljs.highlightAuto(input).value;
+        }
+
+        return hljs.highlight(language, input, true).value;
     },
 
 
diff --git a/src/web/stylesheets/index.js b/src/web/stylesheets/index.js
index 8e5bbc8..860538b 100644
--- a/src/web/stylesheets/index.js
+++ b/src/web/stylesheets/index.js
@@ -7,7 +7,7 @@
  */
 
 /* Libraries */
-import "google-code-prettify/src/prettify.css";
+import "highlight.js/styles/vs.css";
 
 /* Frameworks */
 import "./vendors/bootstrap.less";