massCode - A free and open source code snippets manager for developers.
CodeKeep - Codekeep lets you store and share bits of code and text with other users. Snippets can be organized into folders/labels for instant reuse.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Anyfiddle - Build, run and share code in any language from your browser
CodeMyUI - Handpicked code snippets you can use in your web projects
Bootsnipp - Hundreds of hand picked snippets for Bootstrap