Amy Editor is the online source code and text editor. It support JavaScript, Ruby, PHP, C#, Java, HTML, YAML, etc… programming languages. It has Syntax Highlighting, Smart indentation for each language, Code folding, Unlimited undo/redo, Customizable key shortcuts, etc… You can easily change the color themes of the editor easily. It is implemented using the text-editing control of the Fry Framework in a pure JavaScript fashion, running inside your browser.