SHA Hash Generator

Generate SHA-1/256/384/512 checksums locally — nothing is sent anywhere.

Quick answer: Free SHA hash generator: create SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text using the Web Crypto API. Fast, private, UTF-8 safe.

How to use

Open this page on any device — no signup needed.
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Get your result instantly — nothing is uploaded.

About this tool

Hash functions create fixed-length fingerprints of data. SHA-256 is today's standard for integrity checks and deduplication; SHA-1 is legacy (avoid for security). This tool uses your browser's native Web Crypto API — fast and completely offline. MD5 is not offered because browsers don't implement it natively and it's cryptographically broken.

FAQ

Why no MD5?

Browsers' Web Crypto doesn't include it, and MD5 is broken for security purposes. Use SHA-256.

Can a hash be reversed?

No — hashes are one-way. Identical input always gives the identical hash.

What are hashes used for?

File integrity checks, deduplication, change detection, password storage (with salting/KDFs).

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