The Best Free Alternative for Chess Game Review & Analysis
SightChess is a free, modern chess game review analyzer powered by multi-threaded WebAssembly Stockfish. Analyze your chess games online, review move accuracy percentages, and uncover brilliant moves, great moves, and blunders without paywalls, subscriptions, or account requirements.
Core Features
- Free Unlimited Chess Game Review: Import PGN text or game links for full-depth Stockfish evaluation.
- Move Accuracy & Blunder Detection: Visual badges for Brilliant (!!), Great (!), Best, Good, Inaccuracies, Mistakes, and Blunders (??).
- Advantage Swing Graph: Track evaluation swings and game-turning moments throughout every phase.
- Live Analysis Board: Interactive chessboard with candidate lines (MultiPV) and Lichess master database.
- Play vs Bots: Practice against bots ranging from beginner to grandmaster levels (500 to 3200+ rating).
- 100% Client-Side Privacy: Evaluations run locally on your device via WebAssembly. Zero game data tracking.
Frequently Asked Questions
Is SightChess really a free alternative to Chess.com game review?
Yes. SightChess gives you unlimited, deep chess game reviews with Stockfish 18, move accuracy scoring, advantage graphs, and brilliant move detection completely free with no daily limits or diamond subscriptions.
How do I analyze a chess game on SightChess?
Simply navigate to Game Review or Analysis Board, paste your PGN or enter your moves, and our engine evaluates every position with multi-threaded Stockfish in real time.
Are my games stored or tracked?
No. SightChess runs 100% client-side in your browser using WebAssembly. Your moves and games are never sent to external servers or logged.