Hash Generator
Compute SHA family hashes of any text, straight in your browser with Web Crypto — computed locally, transmitted nowhere.
What is a hash good for?
A cryptographic hash is a fixed-length fingerprint of your data: change one character and the hash changes completely. Uses include verifying file downloads against published checksums, comparing whether two texts are identical without storing them, and key derivation pipelines. SHA-256 is today's standard choice; SHA-1 is considered weak for security purposes but still used for legacy checksums.
Frequently asked questions
Why is there no MD5 here?
MD5 is cryptographically broken (collisions can be forged) and the browser's secure crypto API deliberately omits it. For legacy MD5 needs, use a dedicated offline tool — but migrate to SHA-256 whenever you can.
Is my text sent anywhere?
No. Hashing uses the browser's native Web Crypto engine on your own device. You can hash secrets offline after the page loads.