A worked example
Load the starting-position FEN to inspect its board.
FEN editor
Edit a FEN string and validate its board and metadata.
YOUR LITTLE WORKBENCH
ON YOUR DEVICE ✦FEN editor
Loading your local workspace…
THE METHOD / 01
A clear wayfrom start to finish.
A FEN describes placement, side to move, castling, en passant and clocks.
Keep the assumptions clear
One main-line game, at most 20,000 PGN characters and 400 half-moves. No engine analysis, move evaluation, multiplayer or variation editor. Unicode piece appearance depends on local fonts.
A FEW USEFUL ANSWERS
Good to know.
Are my inputs uploaded?
No. Processing runs locally in your browser. The host still receives normal requests for website pages and assets.
Can I keep my result?
Use the download controls for the current tool or print from your browser. Your valid edits autosave in this browser. Export a JSON backup to move devices; see the privacy page.
Do I need an account?
No sign-up, paid API or subscription is required. Both languages use the same tools. English always opens at the root address.
BOARDKIND / TOOLKIT