Hash Generator
Generate SHA and MD5 hashes.
Type or paste text and generate cryptographic hashes. SHA-1/256/384/512 use the browser's Web Crypto API; MD5 is included as a legacy, non-secure option. Everything runs locally in your browser.
SHA-256 or stronger is recommended. SHA-1 and MD5 are not secure and are included only for legacy compatibility.
Your input is processed locally in your browser — nothing is uploaded, stored or logged.
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How it works
- 1 Type or paste your text.
- 2 Choose the hash algorithms.
- 3 Copy the resulting hashes.
Common use cases
- Generate a checksum for a string.
- Compare values without storing them.
- Create cache keys or fingerprints.
- Verify data integrity.
Frequently asked questions
Is my input sent to a server?
No. Everything runs locally in your browser — your input is never uploaded, stored or logged.
Which algorithm should I use?
Use SHA-256 or stronger for security. SHA-1 and MD5 are broken for security and are provided only for legacy compatibility.
Are hashes reversible?
No. Hashes are one-way. This tool also does not store anything — it runs entirely in your browser.
Is it really free?
Yes — free, with no signup and no limits.