A free and strong UCI chess engine
Distributed Stockfish analysis for lichess.org
The Stockfish chess engine for web browsers
Play chess in any terminal. Rust TUI, Stockfish, Lichess.
chess variant engine supporting Xiangqi, Shogi, Janggi, Makruk, S-Chess, Crazyhouse, Bughouse, and many more
Beautiful, powerful chess app for the Mac
Stockfish NNUE (Chess evaluation) trainer in Pytorch
Claude Code skills for chess post-mortems: Stockfish-backed annotated PGN, HTML viewer, narrated video
Best Open Source Chess Blunder Trainer 2026 Self-Hosted Stockfish Analysis