Alternatives to Runnable CodeSnippets for all platforms with any license

Know any alternatives we haven't listed?
We want more alternatives to Runnable CodeSnippets. Feel free to add any alternative that you know of, or ask your friends on  Twitter or Facebook if they can help out.

Platforms

Show 2 less popular platforms

Runnable CodeSnippets Comments

Echo echo ... Feels empty in here

Maybe you want to be the first to submit a comment about Runnable CodeSnippets? Just click the button up to your right!