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16 Free Code Syntax Highlighters by Javascript For Better Programming If you are a programmer, maybe highlighting feature, in IDE (Integrated Development Environment), is not weird thing with you. On web based appplications now, there are a lot of libraries that support we do this operation, both the server and client. However, the client libraries are loved. This free JavaScript article shows you a list of the libraries that are best and free.

Label: 16, syntax highlight, programmer, IDE, appplication, library, operation, server, client

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8. SHJS - Syntax Highlighting in JavaScript

SHJS is a JavaScript program which highlights source code passages in HTML documents. Documents using SHJS are highlighted on the client side by the web browser.

SHJS Support many languages too - Bison, CC++, C#, ChangeLog, CSS, Desktop files, DiffFlex, GLSL, Haxe, HTML, Java, Java properties files,JavaScript, JavaScript with DOM, LaTeX. LDAP files, Log files, LSM (Linux Software Map) files, M4, Makefile, Objective Caml, Oracle SQL, Pascal, Perl, PHP,Prolog, Python, RPM spec files, Ruby, S-Lang, Scala, Shell, SQLSt, andard ML, Tcl, XML, Xorg configuration files.

Download link

9. CodePress - Online Real Time Syntax Highlighting Editor

CodePress is web-based source code editor with syntax highlighting written in JavaScript that colors text in real time while it's being typed in the browser.

This editor offers several features like real-time syntax highlighting, code snippets, auto completion and multiple windows. Check out their website to see online demo version.

Demo page and download links are on the same first page.

10. Chili 2.2 jQuery code highlighter plugin

Chili is the jQuery code highlighter plugin which is very fast highlighting, trivial setup, fully customizable, thoroughly documented and MIT licensed.

Plugin supports several languages like C++, C#, CSS, Delphi, Java, JavaScript, LotusScript, MySQL, PHP, and XHTML and has many configuration options giving you very good control over code appearance.

Check out demo examples and install

Download link

11. Highlight - Code & Syntax highlighting by Andre Simon

Highlight converts source code to formatted text with syntax highlighting:

  • Colorized output in HTML, XHTML, RTF, TeX, LaTeX, SVG, BBCode and XML format
  • Supports 140+ programming languages
  • Includes 40 colour themes
  • Platform independent

Check out demo page

Download link

12. BeautyOfCode: jQuery Plugin for Syntax Highlighting

BeautyOfCode is using Syntaxhighlighter as a base, but this plugin enables xhtml compliant syntax in beautiful way.

13. JUSH - JavaScript Syntax Highlighter

JavaScript Syntax Highlighter can be used for client-side syntax highlighting of following languages: html, css, javascript, php, mysql, SQLlite, Apache, PostgreSQL.


  • Highlights languages embedded into each other
  • Links to documentation of all languages
  • Colors can be easily modified via CSS
  • Recognizes complete PHP syntax including __halt_compiler, heredoc, backticks, {$} variables inside strings, namespaces
  • Works in all major browsers including Internet Explorer, Firefox, Opera

Check out demo page

Download link

14. Ultraviolet - Syntax Highlighting Engine

Ultraviolet is a syntax highlighting engine based on Textpow - you must install it to use Ultraviolet first. Since it uses Textmatesyntax files, it offers out of the box syntax highlighting for more than 50 languages and 20 themes. Ultraviolet is at the same time a stand-alone command line utility and a Rubylibrary.


Check out demo page

Download link

15. DlHighlight - JavaScript Syntax Highlighting Engine

This project is an extensive JavaScript-based syntax highlighting engine, check also why you should choose this engine instead of others.

Download and demo links are all in the same page.

16. Syntax highlighter for JavaScript

This online tool will syntax highlight JavaScript 1.2. code. The highlighting is based on patterns, it will not test for valid JavaScript. Put your code into the box, and tell it to syntax highlight. It may take a little while to highlight large amounts of code, be patient and let it finish.

The output format is HTML - designed so that you can create a Web page displaying your code. I enjoyed how this tool really displays code in very clean way!

Of course there are also many programs with already built in syntax highlighting support, but these online versions and JS scripts offer bigger control over highlighting and flexibility.

JavaScript by day

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