Hash Generator (SHA-1, SHA-256, SHA-512)

Create SHA hashes of any text instantly. Uses your browser's built-in Web Crypto API, so your text never leaves your device.

Algorithm Uppercase

Text

Hash

Generate SHA Hashes Online

A hash function turns any input into a fixed-length fingerprint. The same input always gives the same hash, and a tiny change gives a completely different one. Hashes are used to verify data integrity and to build signatures.

This tool computes SHA-1, SHA-256, SHA-384 and SHA-512 using the Web Crypto API built into your browser.

Key features

SHA-1, SHA-256, SHA-384 and SHA-512
Show one algorithm or all at once
Lowercase or uppercase hex output
Updates as you type

SHA-256 of "hello"

2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

How to use

Type or paste your text.
Choose an algorithm, or All.
Copy the hash.

Use cases

Checking that two pieces of text are identical
Producing test vectors for integrations
Generating fingerprints for cache keys

Frequently Asked Questions (FAQ)

Is MD5 supported?+

No. The Web Crypto API does not provide MD5, and MD5 is not considered secure. Use SHA-256 or stronger.

Is hashing the same as encryption?+

No. A hash cannot be reversed. Do not use a plain fast hash to store passwords, use a dedicated password hashing function.

Why is SHA-1 included?+

It is still used for non-security purposes like Git object IDs, but it is no longer safe for signatures.

Is my text sent to a server?+

No. Hashing runs in your browser. It needs a secure context, which means https or localhost.