Best open-source chess tools in 2025

Komodo
Komodo

Advanced chess engine for strategic analysis and player improvement.

Free
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🎮 Game tactics • ♟️ Chess training
Stockfish
Stockfish

Advanced chess analysis engine for players of all levels.

Free
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♟️ Chess analysis • ♟️ Opening strategies
Decode Chess - AI Chess Coach
Decode Chess - AI Chess Coach

AI-powered chess coach that explains moves in simple terms.

Free + from $8.25/m
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♟️ Understanding chess • ♟️ Chess insights for players
Wozlo Chess
Wozlo Chess

Interactive chess learning through advanced AI coaching.

Free trial + from $4.99/m
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♟️ Chess learning • 🤖 Interactive coaching
ChessGPT.ai
ChessGPT.ai

Engaging AI-powered chess experience for all skill levels.

Free
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♟️ Chess AI • ♟️ AI opponent
Chess
Chess

Play chess against an AI for practice and strategy improvement.

Free
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♟️ AI opponents • 🎮 Game tactics
Chess AI
Chess AI

Play chess against AI anytime to improve your skills.

Free
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♟️ Chess games • ♟️ Chess enjoyment

Related Categories

♟️ Chess analysis resources ♟️ Chess analysis software ♟️ Chess coaching development ♟️ Chess coaching insights ♟️ Chess evaluation methods ♟️ Chess game improvement tips ♟️ Chess insights and feedback ♟️ Chess performance ♟️ Chess performance improvement ♟️ Chess performance strategies ♟️ Chess practice techniques ♟️ Chess strategy analysis techniques ♟️ Chess strategy insights ♟️ Chess training resources evaluation ♟️ Strong opponent practice