Uncrustify - Banish crusty code with the Uncrustify C/C++/C#/Obj-C/D/Java/Pawn/VALA source code beautifier.
JavaScript Obfuscator - JavaScript Obfuscator is a free online tool that obfuscates your source code, preventing it from being stolen and used without permission.
Artistic Style - astyle, code formatting
Code Beautifier - Code Beautifier CSS Formatter and Optimiser - Online CSS parser and Optimiser
NArrange - NArrange is a tool for arranging .NET source code.
Terser - JavaScript parser, mangler, optimizer and beautifier toolkit for ES6+