Screenshot → position
Turn a chessboard into FEN.
Upload a clean 2D board screenshot, align the crop, and classify all 64 squares directly on your device.
1. Choose a screenshot
PNG, JPEG, or WebP. The board can be part of a larger screenshot.
Drop a screenshot here
or choose one from your device
Private by design. Your screenshot is decoded and classified locally in this browser; it is never uploaded to an inference server.
2. Align the board
Drag inside the square to move it. Drag a corner to resize it around the 8×8 grid.
3. Review the position
Classified 64 squares locally.
Your crop
Predicted board
Detected board FEN
Assumed complete FEN
Castling rights, en passant target, and move clocks are assumed—not detected from the image.
Mean confidence—
Minimum confidence—
Low-confidence squares—
Per-square predictions
| Square | Prediction | FEN | Confidence |
|---|