Snipt is a web service that attempts to solve a simple problem: storing commonly used snippets of code, and sharing them with your fellow coders. It seems to do that pretty well, with lots of good options for storing and sharing. Better yet, it has its Snipt API so coders can use this simple storage engine within their own programs.
Unity Technologies has completed its move from asm.js to WebAssembly with the Unity 2018.2 release. With this release, developers can now make wasm-only builds and the default linker target is now wasm instead of asm.js. The company plans on deprecating asm.js in the Unity 2018.3 release.