Analyze chess games online with Stockfish, import PGN or games from Chess.com and Lichess, and review mistakes and moves.
Chessigma
Chessigma analyzes games from Chess.com, Lichess or PGN files and generates reports without requiring signup.
About Chessigma
Chessigma is a browser-based chess analysis tool that produces game reports from Chess.com, Lichess or PGN games. You enter a Chess.com or Lichess username, or paste/upload a PGN file, and the site grades each move from Brilliant to Blunder, shows overall accuracy, identifies the opening played, plots an evaluation graph, and lists the best and worst moves with the engine's top choice for each position. The analysis is described as running on the user's own device using Stockfish, and the site states there is no daily game limit, no premium tier and no signup needed to analyze.
The site also offers related training features: a free openings trainer, a tool that returns the Stockfish best move for any FEN, an Elo calculator for estimating rating changes, and a newer AI chess coach with a Chess DNA report, daily plan, blunder training and bot sparring. Signing in is optional and is used to save usernames, track multiple players and access puzzles. The homepage links to a pricing page advertising a discount with yearly billing, so some of the coaching or course features appear to sit outside the free analysis described.
Key features
- Grades every move from Brilliant to Blunder and reports overall accuracy
- Imports games by Chess.com or Lichess username, or pasted/uploaded PGN
- Evaluation graph, best and worst moves, engine top choice per position
- Analysis board with engine lines and exploration of missed variations
- Automatic opening identification plus a free openings trainer
- Stockfish best move from any FEN and an Elo change calculator
Best for: Chess players who want unlimited free reports on their own Chess.com, Lichess or PGN games without creating an account.
Good for
- The site states there is no daily game limit, no premium tier and no signup required for analysis
- Accepts games from Chess.com, Lichess and standard PGN files, with no stated restriction on time control or number of games
- Analysis uses Stockfish and is described as running on the user's own device
Watch out for
- The homepage links to a pricing page advertising a yearly-billing discount, so the AI coach, courses and other newer features are not clearly covered by the free-analysis description
- The comparison to Chess.com's one-game-per-day free review is the site's own claim and not independently verified in the source
- Account-related features such as saving usernames, tracking multiple players and puzzles require signing in, and no data-handling details are given on the homepage
Chessigma at a glance
- Website
- chessigma.com
- Category
- Gaming › Game Guides, Wikis & Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Chessigma FAQ
Do I need an account to analyze a game?
No. You can type a Chess.com or Lichess username, or paste a PGN, and start right away. An account lets you save usernames, track multiple players and access puzzles.
Which sources can games be imported from?
Chess.com and Lichess via username, and any standard PGN, either pasted as text or uploaded as a .pgn file.
Is there a daily limit or paywall on game analysis?
The site states there is no paywall and no daily game limit, and that analysis runs on your own device, which it says is how it stays free and unlimited.
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