The best free chess game review tools in 2026
Written by the Lumichess team. Lumichess is one of the seven tools below, so we have tried to give every tool the same treatment: what it is, what it does well, its limits, and who it suits. There are no scores. Each tool is the best fit for a different kind of player.
Last checked: 10 November 2026. We visited each tool’s own site and documentation that day without signing in, and ran a game where we could. Anything we could not confirm is marked “Not stated” or left out. Tools change often, so check a detail on the tool’s own site before relying on it.
Best for what
- Every game reviewed, plus a report across 1,000 games: Lumichess
- Free, open-source study tools: Lichess
- One guided review a day on Chess.com: Chess.com Game Review
- An all-in-one training app with phone apps: Chessigma
- A published grading method: ChessGrader
- A classic analysis board with a choice of depth: Chess It Up
- A quick open-source report: WintrChess
The seven tools side by side
| Feature | Lumichess | Lichess | Chess.com free | Chessigma | ChessGrader | Chess It Up | WintrChess |
|---|---|---|---|---|---|---|---|
| Unlimited reviews | Yes | No limit stated | One a day | Yes | Yes | Yes | No limit stated |
| Signup needed | No | To request analysis of a game | Yes | No | No | No | No |
| Where the engine runs | Your browser | Your browser (analysis board) | Not stated | Your browser | Your browser | Your browser; cloud on paid plans | Your browser |
| Chess.com / Lichess import | Both | Lichess games | Chess.com games | Both | Both | Both | Both |
| PGN | Paste or file | Paste or file | Paste in Analysis | Paste or file | Paste | Paste | Paste or file |
| Move labels | 11, Brilliancy to Blunder | Inaccuracy, Mistake, Blunder | 10, Brilliant to Miss | Own names, Sigma to Clown | 11, Brilliant to Blunder | 10, Brilliant to Blunder | Brilliant to Blunder, own scale |
| Accuracy | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Estimated game rating | Yes | Not stated | Yes | Yes | Yes | Not stated | Not shown in our test |
| Coach and training | AI Coach, puzzles, Woodpecker | Puzzles, lessons, studies | Virtual coach, lessons, puzzles | AI coach, daily plan, Woodpecker | Mistake drills | Puzzles, drills, coach plan | Review only |
| Open source | No | Yes | No | Not stated | Not stated | Not stated | Yes, GPL-3.0 |
“Not stated” means we could not confirm the detail on the tool’s own site on 10 November 2026; it does not mean the feature is missing. Some coach and training features on Lumichess, Chess.com, Chessigma and Chess It Up are part of paid plans.
The tools, one by one
Lumichess (our own tool)
What it is. A chess analysis site for Chess.com, Lichess and PGN games. Stockfish 18 runs in your browser and grades every move.
What it does well. Unlimited reviews with no account. Each move gets one of eleven labels, from Brilliancy to Blunder, with Book for theory and Forced where there was no choice. You get accuracy for both players, split by opening, middlegame and endgame, and an estimated game rating. Your games library holds your Chess.com and Lichess games together, the Profile Report reads your last 1,000 games and scores six skills, and Insights charts your whole history. There are also puzzles, a Woodpecker Method trainer, an AI Coach, and an MCP server for AI assistants.
Limits. It is a website, with no app in the app stores, and it is in English only. The code is not open source. Like every tool here that runs the engine in your browser, a review takes longer on an older phone. Lumichess Premium is a separate plan for the AI Coach and training.
Who it suits. Players with games on Chess.com, Lichess or both who want every game reviewed and a clear picture across many games.
Lichess analysis
What it is. The analysis board and computer analysis of Lichess, the free and open-source chess site run by volunteers and funded by donations.
What it does well. The analysis board runs Stockfish in your browser (Stockfish 19 when we checked). Computer analysis of a game marks inaccuracies, mistakes and blunders and gives each side an accuracy score, and Lichess publishes how that accuracy is worked out. Around it sit puzzles, lessons, studies and a database of master games, and the whole site is open source.
Limits. It reads Lichess games directly; games from elsewhere come in by pasting a PGN. Requesting computer analysis of a game needs a Lichess account. The labels stop at Inaccuracy, Mistake and Blunder, and we found no estimated game rating stated.
Who it suits. Lichess players, and anyone who studies openings and wants a free, open-source home for it.
Chess.com Game Review (free tier)
What it is. The guided review built into Chess.com.
What it does well. A virtual coach walks you through the key moments and lets you retry a move. Moves are labelled Brilliant, Great, Best, Excellent, Good, Book, Inaccuracy, Mistake, Blunder and Miss, and you get a precision score and a game rating for each player, with the opening, middlegame and endgame shown separately.
Limits. A free (Basic) account gets one full Game Review a day; unlimited Game Review comes with its Platinum and Diamond memberships. It needs a Chess.com account and reviews Chess.com games; its analysis board also accepts a pasted PGN or FEN.
Who it suits. Chess.com players who review one game a day and like a guided walkthrough. For the rest of your games, use one of the unlimited tools here.
Chessigma
What it is. A game review site with a training kit around it.
What it does well. Unlimited reviews with no signup, with Stockfish running on your device. Its report shows accuracy, a game rating and a grade per game phase, and it has phone and desktop apps.
Limits. Its report uses its own label names, from Sigma down to Clown, rather than the usual Brilliant to Blunder (its homepage describes the scale that way). The Chess DNA report, the personalised daily plan and the AI coach Froggy are part of its Supercoach plans.
Who it suits. Players who want one app for review and training, especially on a phone or in a language other than English. Our Lumichess vs Chessigma page goes into detail.
ChessGrader
What it is. A focused game review site that publishes exactly how it grades moves.
What it does well. Unlimited reviews with no account. Stockfish 18 runs in your browser at a fixed 100,000 nodes per move, and critical moments are checked again at 600,000 nodes. There are 11 labels, from Brilliant to Blunder with Book, Forced and Miss, plus accuracy, an estimated game rating and plain-English explanations. Its methodology page sets out the thresholds behind every grade.
Limits. By its own account it reviews games and drills the mistakes it finds rather than being a full training platform; its coach is in an invitation-only beta. It covers standard chess only.
Who it suits. Players who want Chess.com-style grades for every game and want to see how the grades are worked out.
Chess It Up
What it is. An analysis board and game analyzer made by a solo developer.
What it does well. Full game analysis with no daily limit and no account. It loads Chess.com and Lichess games by username or takes a PGN, grades moves on a ten-label scale from Brilliant to Blunder with Miss and Book, and shows accuracy and the engine’s best line for any move. Around it are puzzles, Woodpecker-style drills, an openings trainer, bots and a Chrome extension.
Limits. On the free plan Stockfish runs in your browser at depth 12. Its paid plans go to depth 25 on its cloud servers and remove the ads, and its Coach plan adds a coach dashboard and chat. We found no estimated game rating stated.
Who it suits. Players who want a classic analysis board around the report and a choice of analysis depth.
WintrChess
What it is. A free game report site from WintrCat, rebuilt from WintrCat’s earlier Game Report project.
What it does well. Free reports with no signup: we ran one signed out. Load a game from a PGN, a FEN, Chess.com, Lichess or a .pgn file, and you get accuracy for both players and a count of each label. Our test report used Brilliant, Critical, Best, Excellent, Okay, Inaccuracy, Mistake, Blunder and Theory. The code is open source under GPL-3.0, and its source ships Stockfish 17 builds that run in the browser.
Limits. It does one job, the report, with no training tools that we saw. The page shows ads. Its GitHub page says the project is looking for maintainers. No game rating appeared in the report we ran.
Who it suits. Players who want a quick, simple report from an open-source project.
How to choose
Start with where your games are. If they are on Chess.com and you play more than one a day, an unlimited tool saves the daily wait. If they are on Lichess, its own analysis is free already, and the tools that read both sites help when your games are split. Then decide whether you want single-game reports or a picture of your play across many games: for the second, run a Profile Report.
More detail: Lumichess vs Chessigma and Lumichess vs Chess.com vs Lichess.
Frequently asked questions
Which free chess game review tool is best?
It depends on the job. For every game reviewed with a report across many games, Lumichess. For open-source study tools, Lichess. For one guided review a day on Chess.com, Chess.com’s free tier. For an all-in-one training app with phone apps, Chessigma. For a published grading method, ChessGrader. For an analysis board with a choice of depth, Chess It Up. For a quick open-source report, WintrChess.
Which tools review unlimited games for free?
Lumichess, Chessigma, ChessGrader and Chess It Up state that game analysis has no daily limit. Lichess and WintrChess are free and state no limit. Chess.com’s free tier gives one full Game Review a day.
Do I need an account to review a chess game?
Not on Lumichess, Chessigma, ChessGrader, Chess It Up or WintrChess. Lichess needs an account to request computer analysis of a game, and Chess.com Game Review needs a Chess.com account.
Who wrote this comparison?
The Lumichess team, so Lumichess is one of the tools on the list. We checked every other tool on its own site on 10 November 2026, without signing in, and marked anything we could not confirm as Not stated rather than guessing.
Why do accuracy scores differ between sites?
Each site turns Stockfish’s evaluations into an accuracy score with its own formula, and runs the engine to its own depth. Compare accuracy within one tool, not across tools.