Hash & Checksum

100% local. File contents and digests never leave this computer. Files are available only through selections you confirm in the system dialog.

Calculate

Hash one file, a batch, or a directory. Directory symlinks are skipped.

Nothing selected

Output

Verify

Compare a local file with an expected digest. Hex comparison ignores case and surrounding whitespace.

Nothing selected

AlgorithmExpected encodingExpected digest

Compare Files

This compares calculated digests, not every byte directly.

Nothing selected

Algorithms Select one or more (Ctrl/Cmd-click).

Checksum manifests

Generate

GNU, BSD, or SFV with portable relative paths.

Nothing selectedAlgorithmFormat Include subdirectories

Verify

Absolute paths, traversal, UNC/drive paths, and symlink escapes are rejected.

Nothing selectedNothing selectedAlgorithm override (optional)

OpenPGP signature

Verify a file against a detached signature (.asc, .sig, .gpg). The signer's public key is required; a fingerprint checks that it is the key you expect.

Nothing selected

Saved keys are used if you do not add one

Paste a public key

Expected fingerprint (optional) Save this key for later verification

Saved keys

Job

No job running

File	Size	Algorithm	Digest	Status