Hash Toolkit · Extreme performance

BLAKE3 File Hash Checker

Drop in any artifact and generate BLAKE3 digests locally. Pick keyed verification, context-based derivations, or standard hashing and tune the output length for your pipeline. Need text hashing? Jump to the BLAKE3 text tool →

File BLAKE3 Hash

Hash large files at BLAKE3 speed with optional keyed or context-based settings. Streaming keeps data local to this device.

Mode

Digest length (bytes)

Supports extendable output up to 64 bytes (128 hex chars).

Mode helper

Standard hashing mode.

Choose a file

Upload a file

Click to browse or drag & drop files here

Files never leave your device.

File BLAKE3 hash

Hash validation

Select a file and enter a target hash to validate.

BLAKE3 for files

Pair BLAKE3 with keyed mode for MAC workflows or context mode for deterministic key derivation. CipherTools keeps every byte local while streaming for maximum speed.

Close or refresh the tab to clear file references, keys, and contexts. Nothing is uploaded or stored on our servers—because there aren't any.