What File XOR Tool does
XOR every byte of a local file with a repeating hexadecimal key and generate a same-size transformed copy.
Input and output contract
Files are capped at 16 MiB and the repeating key must contain at least one explicit byte. A same-size XOR-transformed binary file.
Safe workflow
Choose a file, enter the exact known key bytes, and generate the output. SaveEditor processes this operation locally in the browser and does not infer a game format from the input.
Important limitations
This is raw repeating-key XOR and does not identify or break encryption. The operation is reversible with the same key, but the Tool cannot determine whether a file actually uses repeating XOR.