Hash Generator (SHA)
Generate SHA-1, SHA-256 and SHA-512 hashes of any text in your browser using the Web Crypto API.
A cryptographic hash turns any text into a fixed-length fingerprint, used to verify integrity and compare data without storing the original. Hash Generator computes SHA-1, SHA-256 and SHA-512 of your text using the browser's built-in Web Crypto, so nothing is sent anywhere.
How to use hash generator (sha)
- 1. Paste your text.
- 2. The SHA-1, SHA-256 and SHA-512 hashes are computed.
- 3. Copy the hash you need.
When to use Hash Generator (SHA)
Verify integrity
Generate a checksum to confirm text or data hasn't changed.
Compare values
Hash two inputs to check whether they're identical without revealing them.
Developer testing
Produce known hashes while building or debugging.
Hashing is one-way
A hash can't be reversed back into the original text — that's the point. It's for verification and fingerprinting, not encryption. Note that SHA-1 is considered weak for security-critical use; prefer SHA-256 or SHA-512 where integrity really matters.
Frequently asked questions
Can I get the original text back from a hash?
No — hashing is one-way by design. It fingerprints data; it doesn't encrypt it.
Which algorithm should I use?
Prefer SHA-256 or SHA-512 for anything security-related; SHA-1 is included for compatibility but is considered weak.
Is my text uploaded?
No — hashes are computed in your browser with the Web Crypto API.