Magic File Renamer Help

Checksum

Inserts a hex checksum of the file's contents on disk. Useful for naming or spotting duplicates - not a security proof.

Signature (positional): <checksum>, <checksum:algo>, <checksum:algo,length>, or <checksum:algo,length,case>

Option	Description
`algo`	Omit or `md5` (default), `sha1`, `sha256`, or `crc32` (case-insensitive).
`length`	How many leading hex characters to keep. `0`, omit, or more than the digest has = the full digest.
`case`	Omit or `lower` (default), or `upper`. Do not leave a middle segment empty; use `<checksum:md5,0,upper>` for a full uppercase MD5.

Examples

Token	Result
`<checksum>`	Full lowercase MD5 hex
`<checksum:sha256,8>`	First 8 hex characters of SHA-256 (lowercase)
`<checksum:md5,0,upper>`	Full uppercase MD5 hex
`<checksum:crc32>`	Full lowercase CRC-32 hex

Hashes the file as it is before GO. If a later filter in the same GO also changes the file's contents (for example tag writes), the name still uses the pre-GO bytes.
Large files can make the first preview slow (and again after F5 or a commit); the result is cached per algorithm until then.
Folders show a preview error.