Qt Creator - a fully featured Windows/Linux/Mac GUI IDE front-end for the GCC/MingGW compiler.

Pelles C - Windows C compiler targeting Pocket PC platform.

CodeSourcery CodeBench Lite - Windows/Linux package targeting the Android platform (produces ARM binaries).

LCC-Win32 - LCC C compiler with IDE + tools for Windows.

Some free GUI IDEs support the D language.

Digital Mars - C/C++ and D 32-bit compilers for Windows.

MinGW-w64 - a 32/64-bit Build and Development Environment for Windows and toolset.

MinGW distribution - 32-bit MinGW compiler and toolset the compiler version is always cutting edge.

Open Watcom - Open Watcom 32/64-bit C/C++ compiler with IDE + tools for Windows.

Contains recent stable builds of GCC and toolset.

TDM-GCC - a 32/64-bit Native Portable Build and Development Environment for Windows.

Visual C++ Express - Microsoft's free 32-bit C/C++ compiler with IDE and tools for Windows only.It connects a UCI chess engine to Winboard.

Polyglot - Michel Van den Bergh's version of Fabien Letouzey's UCI adaptor.Odd Gunnar Malin's Inbetween - Allows you to get in between a GUI interface and a Winboard/UCI engine to observe/change the communication.Chess conversion program - Converts from PGN to Chessbase format.Chess conversion program - Converts from Chessbase format to PGN.Galis Winboard Tournament Manager - Arrange tournaments.Pradu Kannan's PSWBTM - Pradu's Simple Winboard Tournament Manager.Norm Pollock's utility programs - Contains many useful PGN utilities.PGN Scanner - Similar functionality as PGN Extract.David Barnes' PGN Extract - Extract selected games from a PGN format data file using many criteria.Rémi Coulom's Baysian ratings - The best chess ratings system.Tom McBurney's chess tools - Broadcast Winboard games, analyze games, Winboard engine manager.Use it to understand/test/debug your own bitboard code Bibob - an open source Windows bitboard visualization program by Gerd Isenberg.SCID - open source opening book database program maintained by Pascal Georges, created by Shane Hudson.

Chess source code in java