What each output means
One game, three practical formats
SAN is the readable move notation used in books and PGN files. UCI writes the origin and destination squares, such as e2e4, which is useful for engines and software. FEN records the position after the final move so you can reopen that exact board.
Not sure why a move is written Nf3, exd5 or O-O? Read the chess notation guide before converting it.
Limits
Strict rather than partial
The converter reads one game and its main line. Comments and move annotations do not change the output. Parenthesized variations and multiple games are rejected, because flattening them would produce an ambiguous final position. Everything runs in your browser; the PGN is not uploaded.
FAQ
Converting chess moves correctly
What chess notation formats does this converter produce?
It produces normalized Standard Algebraic Notation (SAN), UCI coordinate moves and the final Forsyth-Edwards Notation (FEN) position from one legal move sequence or PGN main line.
Does the converter check whether every move is legal?
Yes. Each SAN move is played from the current position. If a move is illegal or cannot be read, the converter names its place in the sequence and returns no partial result.
Can it convert a PGN that starts from a custom position?
Yes. Include valid SetUp and FEN tags in the PGN. The move numbers, side to move and final FEN will follow that starting position.
Does it preserve comments and variations?
No. This focused converter reads one game and one main line. It ignores comments and annotations, and asks you to remove parenthesized variations rather than silently flattening them.
Keep working from the converted position
Check the final FEN with Stockfish, review every move in the game, or keep the line with notes and annotations.