SHA-256 and SHA-512 hash generator
Calculate a one-way checksum locally without uploading text or files.
Hashes are one-way and cannot be decoded. Do not use MD5 or SHA-1 for passwords.
How it works
Choose an algorithm, provide text or a file, and calculate the checksum entirely in this browser. Compare the result with a trusted published checksum when verifying a download. Hashes cannot be decoded. MD5 and SHA-1 are omitted because they are unsuitable for password security and collision-sensitive uses.