Chess Analyzer

Chess Analyzer is a powerful, free, and ad-free chess analysis tool powered by Stockfish 18 — the strongest open-source chess engine in the world.

Key Features:

♞ Deep Analysis — Analyze any position with Stockfish 18 at adjustable depth (1–30). See multiple principal variations (up to 5 lines) with move numbers, evaluations, and Win/Draw/Loss percentages.

♞ Board Editor — Set up any position with an intuitive drag-and-drop editor. Configure castling rights, side to move, and validate positions in real-time.

♞ PGN Import/Export — Import games from PGN files or paste PGN text. Share your analysis as PGN or board images.

♞ FEN Support — Import and export positions in FEN notation. Copy FEN to clipboard with one tap.

♞ Beautiful Themes — Choose from 5 board color themes (Green, Brown, Blue, Purple, Tournament). Full dark mode support follows your system preference or can be set manually.

♞ Move Navigation — Step through games move by move. The move strip shows full notation with move numbers.

♞ Multi-Language — Available in English, Czech, German, Spanish, and French.

♞ Completely Offline — The engine runs locally on your device. No internet connection required. No ads. No tracking. No subscriptions.

♞ Open Source Engine — Powered by Stockfish 18, the same engine used by top grandmasters and chess websites worldwide.

Chess Analyzer is designed for chess players who want quick, powerful analysis without the clutter. Whether you're reviewing your games, studying positions, or exploring opening ideas — this is the tool for you.