Hash Generator (SHA-1/256/384/512)
Free online hash generator supporting SHA-1, SHA-256, SHA-384 and SHA-512. Type text to instantly compute its hexadecimal digest, useful for verifying data integrity and comparing fingerprints. It uses the browser's built-in crypto API and the original text is never uploaded. SecurityRuns locally
Use this tool
How to use
- Choose an algorithm (SHA-256 by default).
- Paste or type text; the hex digest appears immediately.
- Copy the hash to compare it elsewhere.
Frequently asked questions
Is hashing encryption? Can you reverse it?
A hash is a one-way digest — you cannot recover the original from it. It is used for integrity and fingerprint checks, not for secret communication.
Is SHA-1 still secure?
SHA-1 is no longer suitable for collision-resistant security; choose SHA-256 or higher for new uses. SHA-1 is kept only to verify legacy systems.
Why does it require HTTPS?
It calls the browser's built-in SubtleCrypto API, which is available in a secure context (HTTPS or localhost); the deployed site is served over HTTPS.