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Hash generator

By Gliora Team

Hash generator (SHA)

Computes the hash with your browser's Web Crypto API. A hash is a one-way fingerprint: it can't be reversed. (SHA-1 is deprecated for security.)

This hash generator computes SHA-1, SHA-256, SHA-384 and SHA-512 digests of any text. Pick an algorithm, type your text, and the hexadecimal hash updates as you type.

One-way fingerprints

Hashes are used to verify file integrity, index data and store password fingerprints. They’re one-way: identical input always yields identical output, but the original text can’t be recovered. Everything runs in your browser via the Web Crypto API.

FAQ

What is a hash?
A hash is a fixed-length fingerprint of your input. The same text always produces the same hash, but you can't work backwards from the hash to the text.
Which SHA algorithm should I use?
Use SHA-256 for general purposes — it's fast and secure. SHA-384 and SHA-512 give longer digests. Avoid SHA-1 for anything security-related; it's broken for collision resistance.
Is my text sent to a server?
No. The hash is computed locally with your browser's Web Crypto API, so your text never leaves your device.
Embed this calculator on your site

Copy this code and paste it into your page or blog. It's free and always up to date.