diff --git a/js/less.js b/js/less.js
index c5ff169b6..444466ec4 100644
--- a/js/less.js
+++ b/js/less.js
@@ -8,9 +8,9 @@
  * http://terminal.jcubic.pl
  *
  * This is example of how to create less like command for jQuery Terminal
- * the code is based on the one from leash shell
+ * the code is based on the one from leash shell and written as jQuery plugin
  *
- * Copyright (c) 2014-2018 Jakub Jankiewicz <http://jcubic.pl/me>
+ * Copyright (c) 2018 Jakub Jankiewicz <http://jcubic.pl/me>
  * Released under the MIT license
  *
  */
diff --git a/js/prism.js b/js/prism.js
new file mode 100644
index 000000000..f10272d21
--- /dev/null
+++ b/js/prism.js
@@ -0,0 +1,75 @@
+/**@license
+ *       __ _____                     ________                              __
+ *      / // _  /__ __ _____ ___ __ _/__  ___/__ ___ ______ __ __  __ ___  / /
+ *  __ / // // // // // _  // _// // / / // _  // _//     // //  \/ // _ \/ /
+ * /  / // // // // // ___// / / // / / // ___// / / / / // // /\  // // / /__
+ * \___//____ \\___//____//_/ _\_  / /_//____//_/ /_/ /_//_//_/ /_/ \__\_\___/
+ *           \/              /____/
+ * http://terminal.jcubic.pl
+ *
+ * this is utility that monkey patch Prism functions to output
+ * terminal formatting (it was first created here https://codepen.io/jcubic/pen/zEyxjJ)
+ *
+ * usage:
+ *
+ *     you need to include both css and js (it need to be before this file)
+ *
+ * js code:
+ *
+ *     var grammar = Prism.languages[language];
+ *     var tokens = Prism.tokenize(file, grammar);
+ *     var code = Prism.Token.stringify(tokens, language);
+ *
+ *     term.echo(code); // or term.less(code) if you include less.js
+ *
+ * Copyright (c) 2018 Jakub Jankiewicz <http://jcubic.pl/me>
+ * Released under the MIT license
+ *
+ */
+/* global jQuery, Prism */
+(function(Token, $) {
+    var _ = Prism;
+    _.Token = function(type, content, alias, matchedStr, greedy) {
+        Token.apply(this, [].slice.call(arguments));
+    };
+    _.Token.stringify = function(o, language, parent) {
+        if (typeof o == 'string') {
+            return o;
+        }
+
+        if (_.util.type(o) === 'Array') {
+            return o.map(function(element) {
+                return _.Token.stringify(element, language, o);
+            }).join('');
+        }
+
+        var env = {
+            type: o.type,
+            content: Token.stringify(o.content, language, parent),
+            tag: 'span',
+            classes: ['token', o.type],
+            attributes: {},
+            language: language,
+            parent: parent
+        };
+
+        if (env.type == 'comment') {
+            env.attributes['spellcheck'] = 'true';
+        }
+
+        if (o.alias) {
+            var aliases = _.util.type(o.alias) === 'Array' ? o.alias : [o.alias];
+            Array.prototype.push.apply(env.classes, aliases);
+        }
+
+        _.hooks.run('wrap', env);
+
+        var attributes = Object.keys(env.attributes).map(function(name) {
+            return name + '="' + (env.attributes[name] || '').replace(/"/g, '&quot;') + '"';
+        }).join(' ');
+        return env.content.split(/\n/).map(function(content) {
+            return '[[b;;;' + env.classes.join(' ') + ']' + $.terminal.escape_brackets(content) + ']';
+        }).join('\n');
+
+    };
+})(Prism.Token, jQuery);