Tutkiun

As a programmer, we need to build, create and debug programs. There are plenty good editors available offline (or as a desktop applications) but, the current trend is web based editors. Web based editors…why? Because of simple reason, they allow me to develop a code independent of machine. Some of the best online code editors available online are listed here.

Amy Editor

• Amy Editor is the online source code and text editor. It support JavaScript, Ruby, PHP, Ruby, Java, HTML, YAML, etc. programming language.
• It has look and feel same as that of Mac. It has features like syntax highlighting, line number, snippets for various languages.
• It also lets you save, edit or collaborate with others.

http://www.amyeditor.com/

Bespin

• A Web based code editor, for Web developers, by Web developers. Bespin is built using HTML5, it is project from Mozilla Labs.
• Bespin currently supports syntax highlighting for HTML, CSS, PHP, Python, C#, C, Ruby, Arduino and JavaScript.

https://bespin.mozilla.com/

Kodingen

Kodingen is an Online Development Environment including Code Editor, Cloud Hosting, Database Administration, Collaboration; Web based access to file-system. This editor features templates for most programming languages, syntax highlighting, line numbering and more.

http://kodingen.com/

Codepad

Codepad.org is an online compiler/interpreter, and a simple collaboration tool. It supports various languages like PHP, Ruby, Ocaml, Python, C, C++, etc. After you code and execute it, it creates a link which you can share with others.

http://codepad.org/

HTMLedit

HTMLedit is only a HTML editor that can be used for quick coding. HTMLedit is a real time editor, the moment you start typing you will able to see the output. If you are beginner for HTML then i suggest you go for this one!

http://htmledit.squarefree.com/

Feel free to add some more, if you think they are worth a try in comments below.