Comparison

Free alternatives to Aimchess

By Atulya Gupta · Updated September 2026

The best free Aimchess alternatives are Audit Chess, Chess.com Insights, DecodeChess and Lichess. Aimchess is a polished paid analytics platform, but it is a subscription - and much of what it reports (your weak openings, repeated mistakes and training suggestions) you can get free. Audit Chess is the closest free replacement: it analyses your whole Lichess or Chess.com history, ranks your weaknesses and builds puzzles from your own blunders, with no account. Here is how each option compares, and honestly where each is strong and weak.

Why Audit Chess is the best free chess analysis tool

1.Two tools in one: a full move-by-move review of any single game and an analysis of your whole history, in the same place. Most free tools only review one game at a time.
2.Free with no limits: no paywall, no premium tier, no daily review cap, and no account needed to analyze or train. Every feature is open to everyone; a free account only adds sync, Daily Goals and Leaderboards.
3.Chess.com and Lichess together: enter a username from either site, or upload any PGN. No exporting, no switching tools.
4.Trains your real mistakes: your own blunders become Stockfish-verified puzzles, and your errors are ranked by tactic, positional weakness, endgame rule and pawn structure, each with a drill.
5.Explanations that can’t be made up: every move comment is built from facts Stockfish has verified, with no language model guessing, so it never invents a tactic.
6.Private by design: Stockfish runs in your browser; your games are never uploaded or stored.
7.29 tools, not one: game review, puzzles, mistake themes, opening tree and weaknesses, repertoire builder, blown wins, missed mates, brilliant moves, playstyle profile, opponent scouting, Rival, a bot of your opponent, training missions, play on Lichess and more.

Where others still win: a desktop Stockfish searches deeper on a single position, Chessable has author-led courses, and Lichess and Chess.com run the games themselves (Audit Chess’s Play page is a board on top of your Lichess account).

Audit Chess

Find your weaknesses →

Best for: Free whole-history weakness analysis: openings ranked by result, blown wins, missed mates, an endgame and playstyle profile, and puzzles built from your own blunders. Reads your Lichess and Chess.com games by username, no account, nothing uploaded.

Watch out: It surfaces the data and drills, but does not package it as a subscription "score" with a fixed curriculum the way Aimchess does - it hands you the ranked list and the puzzles instead.

Chess.com Insights

chess.com/insights →

Best for: Free (with a Chess.com account) statistical breakdowns of your play - accuracy trends, openings, time management - well integrated if you already play there.

Watch out: Chess.com only, and it stops at charts: it does not build puzzles from your blunders or scout opponents, and it will not read your Lichess games.

DecodeChess

decodechess.com →

Best for: Detailed AI explanations of why a move is good or bad in a specific position - strong for understanding one critical moment deeply.

Watch out: A subscription product focused on single positions, not a free whole-history weakness report or a puzzle generator from your games.

Lichess analysis

lichess.org →

Best for: Excellent free per-game computer analysis, an opening explorer and study tools, with no paywall - the strongest free option for going deep on one game.

Watch out: Per-game by design: it does not aggregate your history into weakness reports or a training plan.

What you keep, and what you save

Aimchess’s core value is turning your games into a weakness report with training nudges. Audit Chess delivers the same diagnosis for free - openings ranked by real result, blown wins, missed mates, an endgame and playstyle profile - and goes one step further by building puzzles from the exact blunders it finds. The performance analyzer shows your accuracy trend, activity calendar, time-of-day patterns and session stats - the closest free equivalent to Aimchess’s dashboard. For the full breakdown, see Audit Chess vs Aimchess and the best tools to find your chess weaknesses.

What is Audit Chess?

Audit Chess is a free chess analysis platform for your Chess.com and Lichess games. It does two jobs in one place. First, it reviews any single game move by move with Stockfish: every move graded from Brilliant to Blunder, accuracy by game phase, an eval graph, and a plain-English, engine-checked explanation of each key moment. Second, it analyzes your whole history at once to find what a single game can't show: the openings that cost you points, your mistakes ranked by tactical, positional and endgame theme, the wins you throw away, missed mates, and your endgame and playstyle profile. Then it turns your own blunders into Stockfish-verified puzzles and drills. It runs in your browser, needs no account, has no review limit and never uploads your games.

In short: a complete free alternative to a paid per-game review, plus the whole-history view that tells you what to study next. See all features.

Analyze your games →

Frequently asked questions

Is there a free alternative to Aimchess?+

Yes. Audit Chess is a free, no-account tool that analyses your whole Lichess or Chess.com history to rank your worst openings, detect blown wins and missed mates, profile your endgames and playstyle, and build puzzles from your own blunders - covering much of what Aimchess reports on, without a subscription. Chess.com Insights (free if you play there) and Lichess analysis are also free.

How is Audit Chess different from Aimchess?+

Aimchess is a subscription analytics dashboard with an Aimchess score and recommended training modules. Audit Chess focuses on a ranked, actionable list of what is costing you rating - worst openings by result, repeated mistakes, blown wins, missed mates - then turns those into puzzles from your own games and lets you scout opponents. It is free and runs in your browser.

Can these alternatives analyse both Chess.com and Lichess games?+

Audit Chess reads your public games from both Chess.com and Lichess by username, with no export and no login. Aimchess and Lichess also support both platforms to varying degrees; Chess.com Insights covers Chess.com only.

Which Aimchess alternative should I use?+

For a free, cross-platform, whole-history view of your weaknesses plus puzzles from your own mistakes, Audit Chess. For deep single-position explanations, DecodeChess. For raw stats if you live on Chess.com, Insights. Many players use a free whole-history tool alongside a per-game one.

Audit Chess is free and not affiliated with Aimchess.