LINQPad - A scratchpad for C#, F# and VB code including Linq queries.
3Cols - Manage your code snippets in the cloud fast, easy and free for personal use forever.
Linqer - Linqer is a SQL to LINQ converter tool.
Lepton - Lepton image compression: saving 22% losslessly from images at 15MB/s
Dot Net Editor - An VB/C# text editor with the ability to run code and code snippets.
Boostnote - Boostnote is an open-source note-taking app.