WintrChess
Free, open-source game review with Chess.com-style move classifications and accuracy scores. Unlimited analyses, no paywall.
No affiliate relationship with this tool. The link below goes directly to the product site.
Our take
If the only thing keeping you on a Chess.com membership is unlimited Game Review, WintrChess deletes that reason. The classifications track Chess.com's closely enough that the experience transfers, and "free and unlimited" beats "one per day". I keep two caveats: it explains nothing (pair it with a coach tool if you want the why), and it lives on one developer's enthusiasm — the original Freechess went stale before this rebuild. Use it, enjoy it, but export your PGNs.
WintrChess is the rebuilt successor to “Freechess”, the open-source game report tool that went viral in early 2024 by replicating Chess.com’s paid Game Review for free. Built by chess-programming YouTuber WintrCat, the 2025 rebuild added a proper site, account-free analysis, and imports from Chess.com, Lichess, or pasted PGN.
Every analysis gives you the familiar move classifications — Brilliant, Great, Best, Inaccuracy, Mistake, Blunder — plus accuracy percentages and engine lines, with no daily limit. A companion Chrome extension adds a one-click “analyze” button on Chess.com and Lichess game pages.
Pros
- Unlimited free game reviews with brilliant/great/mistake/blunder classifications that closely match Chess.com's paid feature
- Imports from Chess.com and Lichess or raw PGN; a Chrome extension adds an analyze button directly on both sites
- Fully open source — you can read the classification logic or self-host it
Cons
- One-developer project, and its predecessor (Freechess) was already abandoned once — long-term maintenance is a real risk
- No narrative or LLM coaching layer; you get classifications and engine lines, not explanations
- The browser extension is rougher than the site itself
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