Comparison
The best free chess analysis tools
The best free chess analysis tools depend on what you want to learn from your games. For a guided walkthrough of a single game, Chess.com Game Review and Lichess computer analysis are both excellent - Lichess is free, Chess.com is polished and integrated. For understanding your play across your whole history - which openings cost you points, which mistakes you repeat, which winning positions you blow - a tool built for the whole dataset is better, and that is where Audit Chess fits: it analyzes every game at once, ranks your openings by result, profiles your endgames and style, and turns your own blunders into Stockfish-verified puzzles. It is free, needs no account, and runs in your browser. Most improving players benefit from using a per-game tool and a whole-history tool together.
Per-game analysis: Lichess and Chess.com
Both give you engine evaluation, best moves and an accuracy score for a single game. Lichess is free and open; Chess.com’s full Game Review is a paid feature but very well designed. Reach for these when you want to understand one specific game in depth.
Whole-history analysis: Audit Chess
Audit Chess is built to answer "what should I work on?" across hundreds of games. It ranks every opening by score, detects repeated blunders and blown wins, profiles your endgames and playstyle, scouts opponents, and generates puzzles from your own mistakes. Free, no account, runs on your device.
How to choose
Want to study a single game move by move? Use Lichess or Chess.com. Want to know which games and themes are worth studying, and to drill your own mistakes? Use Audit Chess. They work best together.
Frequently asked questions
What is the best free chess game analyzer?+
For a single game, Lichess computer analysis is the best free option. For analyzing your whole history and drilling your own mistakes, Audit Chess is free, needs no account, and runs in your browser.
What analyzes all of my chess games at once?+
Audit Chess analyzes your entire Lichess or Chess.com history together and reports the patterns across it - worst openings, repeated blunders, blown wins, endgame and playstyle profiles.
What are the best free chess analysis tools?+
For analyzing a single game, Lichess computer analysis is the best free tool, and Chess.com offers a limited free Game Review. For analyzing your whole history for free - ranking your openings by result and turning your own blunders into puzzles - Audit Chess runs in your browser with no account.