About Chess It Up
What is Chess It Up?
Chess It Up is a free chess game analyzer made by a solo dev that helps you understand your games and improve your play. Using the powerful Stockfish chess engine, we provide detailed move-by-move analysis, identify mistakes, and highlight your best moves.
Why I Built This
I played chess growing up, and recently got back into playing online. I've been wanting to improve my game by analyzing my games, but most chess platforms charge $10+/month for game analysis. I believe everyone should have access to quality chess analysis, regardless of budget.
Chess It Up gives you unlimited free analysis with features like:
- Move-by-move analysis with Stockfish engine
- Move grading (Brilliant, Great, Best, Good, Inaccuracy, Mistake, Blunder)
- Game accuracy scores
- Import games directly from Chess.com or Lichess
- Analysis mode to explore variations
- Opening name detection (Work in progress)
- Works on desktop and mobile
How It Works
All analysis runs locally in your browser using Stockfish compiled to WebAssembly. This means your games are never uploaded to any server - everything stays private on your device. We also use Lichess's cloud evaluation for common positions to speed up analysis.
Open Source Credits
Chess It Up is built with amazing open source technology:
- Stockfish - The world's strongest open source chess engine
- chess.js - Chess move validation and PGN parsing
- react-chessboard - Beautiful chess board component
- Next.js - React framework for the web
Get In Touch
Have feedback, found a bug, or just want to say hi? Reach out on Twitter/X at @TheSaadster_Dev.