ideone.com : Ideone is an online compiler and debugging tool which allows youto compile source code and execute it online in more than 60 programming languages.
Insight.io : Insight.io brings IDE-like code intelligence features such as cross-reference, class hierarchy and semantic search, right into your browser and helps ...
Roam Research : A note-taking tool
for networked thought.
As easy to use as a document. As powerful as a graph database.
Roam helps you organize your research for the...
Powerful and simple online compiler, IDE, interpreter, and REPL. Code, compile, and run code in 30+ programming languages. including JavaScript, Python, Ruby, Java, Node.js, Go, Scheme, C, C#, C++, Lua and many more.