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.
Git - Git is a free and open source version control system designed to handle everything from small to very large projects with speed and efficiency. It is easy to learn and lightweight with lighting fast performance that outclasses competitors.
Anyfiddle - Build, run and share code in any language from your browser
Mercurial SCM - Mercurial is a free, distributed source control management tool.
30 seconds of code - JS snippets that you can understand in 30 seconds or less.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.