Chess Review

Free, open-source analysis for your chess games.

Independent, one-click chess analysis for games from sites like Chess.com and Lichess. Completely free, with every feature available to everyone. KEY FEATURES • Player accuracy — See estimated accuracy scores for both players. • Best-move arrows — See the engine’s recommended move directly on the board. • Move classifications — See how the engine rates each move. • Evaluation graph — Track how the advantage shifted throughout the game. • Performance estimates — See an estimated performance rating for each player. • Opening detection — Identify the opening played using the built-in opening book. • Interactive analysis — Explore your own variations with live Stockfish evaluation. HOW IT WORKS Open a game on Chess.com or Lichess and start a review. Chess Review uses Stockfish to analyze the game directly in your browser, with all analysis running locally on your device. Get a complete move-by-move review with accuracy scores, move classifications, evaluations, recommended moves, estimated performance ratings, and opening information. 100% FREE • No ads. • No paywalls. • No subscriptions. • No account required. • No premium or paid tiers. • Every feature is available to everyone. PRIVACY Everything runs locally in your browser, so no data leaves your device. OPEN SOURCE Chess Review is open source and licensed under GPLv3. Explore the source code: https://github.com/T-Julsgaard/Chess-Review Chess Review is an independent, unofficial tool. It is not affiliated with, endorsed by, or sponsored by Chess.com or Lichess.