Chess Analyzer
Engine
Full engine analysis & accuracy scoring
Every move graded against Stockfish, with a per-game accuracy score — the same idea chess.com's paid tier uses, running entirely on your machine.
1.e4 e5 2.f4 exf4 3.Bc4 Qh4+
The Game Review chess.com wants you to pay for — free, and it never leaves your machine.
Chess Analyzer runs a real Stockfish engine locally to grade every move, score your accuracy, and surface the patterns costing you games. No subscription, no upload.
9 move-quality tiers · 6 tactic types detected · 0 cloud calls
In active development — a Linux build already exists today; Windows and Mac are next. I'll email you the moment there's a build for your platform.
What it actually does
Classify
Move-quality classification
Brilliant, best, good, inaccuracy, mistake, blunder — see exactly where a game turned, move by move.
Import
Import from chess.com
Paste a PGN, upload a file, or search your chess.com username directly.
Insights
Tactical insights
Recurring forks, pins, hung pieces — Insights tracks the patterns actually costing you rating, not just single-game noise.
No subscription. No cloud. No games uploaded anywhere.
Chess Analyzer runs entirely on your machine using a local Stockfish engine — your games stay yours, and there's nothing to pay for, ever.