Free Chess.com Game Analysis
Chess.com locks full game review behind Premium on many accounts. VoltChess gives you the same kind of feedback — accuracy scores, blunder detection, move classification, and an evaluation graph — for every Chess.com game, free and unlimited.
Enter your Chess.com username below, pick a recent game, and Stockfish analyzes every move in your browser within seconds. No subscription, no daily cap, no sign-up.
Is VoltChess really free for Chess.com games?
Yes. VoltChess is completely free with no premium tier and no daily analysis limits. Import as many Chess.com games as you want.
Does it work without Chess.com Premium?
Absolutely. You only need a Chess.com username to load your public games. VoltChess does not require Chess.com Premium or a VoltChess account.
How is this different from Chessigma or Chess It Up?
All three offer free Chess.com analysis with Stockfish. VoltChess runs the engine locally in your browser for privacy, includes an interactive onboarding tour, and supports coaches with an optional Academy product.
What analysis features do I get?
Full game review: evaluation graph, move accuracy, ELO estimate, blunder and mistake highlighting, best-move suggestions, and phase-by-phase breakdown — powered by Stockfish 17.