Star Chess Analyzer

Review chess games, understand key moves, and explore Stockfish analysis.

Star Chess Analyzer helps you understand your chess games—not just see an engine evaluation. Import a PGN to review your game move by move. Find strong moves, inaccuracies, mistakes, and blunders, then explore engine-preferred alternatives and key variations on the board. Features - Analyze games with Stockfish directly in the extension. - Review evaluations and move classifications throughout the game. - Explore engine lines and alternative moves with board arrows. - Get explanations for key mistakes and strong moves. - View player accuracy, game summaries, and evaluation graphs. - Save PGN games locally and export annotated PGN or analysis data. - Enter a position using FEN and explore possible moves. - Customize the board, theme, language, and analysis settings. An optional precomputed chess-position database can be downloaded to speed up analysis of matching positions.