Chess Notebook Web
Welcome to Chess Notebook
Type your chess.com username. Your finished games are downloaded and analysed by Stockfish, right here in your browser.
- No password needed: only your public games are read.
- Everything stays in this browser on this computer. Nothing is uploaded.
- The first analysis takes a while (your newest 50 games first). Keep this tab open; you can browse while it works.
Today
Record
Recent form
Last 20 games vs earlierPerformance by category
Puzzles
Recent games
Coming next: an opening trainer and rewards.
Performance by category
Scores come from your own games and Stockfish analysis (not a comparison with other players). Arrows compare your last 20 games with earlier ones.
How you lose material
Every one of your mistakes, misses and blunders, sorted by what kind of error it was. Tap a row for a tip and examples you can jump straight to.
When your errors happen
Mistakes, misses and blunders per 100 of your moves. Lower is better.
Trends
Each dot is one game; the line is the average of your last 5 games at that point.
This year vs last year
Splits
How you do in different kinds of games. "Rated" is your average rating going in; "Played like" is the average single-game rating estimate.
Your best moments
Brilliant moves, traps and great moves from all your games. Tap one to see it on the board.
Your openings
Each opening family you've played at least twice, as White or as Black. "After move 10" is your average position then (+ = you're ahead).
Key moments
Moves
Game report
Puzzles from your games
Puzzle map
Account
Analysis
Engine:
Back up and restore
Save everything (games, analysis, progress) to a file, to keep safe or move to another browser or computer.
About
Chess Notebook downloads your finished chess.com games from chess.com's public data and analyses them in this browser. It never looks at games still in progress.
Analysis by Stockfish 19 (stockfish.js by Nathan Rugg, GPLv3, source code). Chess rules by chess.js (BSD licence). Pieces by Colin M.L. Burnett (GPLv2+). Font: Plus Jakarta Sans (SIL Open Font Licence). Opening names from the lichess chess-openings list (CC0). See LICENSES.txt.