Free chess tools

Every tool you need to get better

A free Stockfish analysis board, rated puzzles, an opening explorer, and a board editor — all in your browser, no account required.

Analysis Board

Drop in any game or position and let Stockfish do the heavy lifting — best-move arrows, a live evaluation bar, and full move navigation. No account, no limits.

Explore the Analysis Board

Puzzle Trainer

Sharpen your tactical eye on 3,100+ ELO-rated puzzles that get harder as you improve. Train at your own pace, race the clock in Puzzle Rush, or solve the Daily Puzzle.

Explore the Puzzle Trainer

Opening Explorer

A curated library of the main openings for White and Black. Step through each line move by move, see Stockfish's take on every position, and drill the theory until it sticks.

Explore the Opening Explorer

Board Editor

Build any chess position from scratch — place any pieces freely, even multiple queens — choose the side to move, and hand it straight to Stockfish for instant analysis.

Explore the Board Editor

Leaderboard

See the top puzzle solvers and where your rating ranks.

Saved Games

The extension auto-saves your Chess.com and Lichess games — replay and re-analyze any of them.

Analyze every game as you play

The tools are free. The ChessSolve extension takes it further — live Stockfish arrows and evaluations right on Chess.com and Lichess.