An awesome multi-language IDE written in JavaScript, crafted for ChromeOS and released under the GNU general public license!
Code Pad IDE is a free and lightweight IDE/text editor built for Chrome operating system. Code Pad allows you to write code and build projects in an easy way right on your Chrome OS device.
The IDE supports a variety of different languages!
P.S. You can also use it as a simple text editor, if that's all you need (duh)...
Bash, C/C++, CoffeeScript, CSS3, Dockerfile, GitIgnore, GoLang, HTML5, Java, JavaScript, JSON, Less, Lua, Markdown, MS SQL, Perl, PHP, PHTML, Plain text, Python, Ruby, Rust, Sass, Scala, SQL, TypeScript, XML, XHTML.
Chromebook
The Code Pad IDE can be installed directly from the Chrome store here: https://chrome.google.com/webstore/detail/code-pad-ide/adaepfiocmagdimjecpifghcgfjlfmkh
Other devices
Alternatively, if you're not running a Chrome OS device just follow these steps:
Load unpacked extension...
and select the directory containing the Code Pad manifest.json file.