Hash Generator
Checksums and digests, locally.
Runs on your device
At a glance
- Processing:
- Runs locally in your browser
- Privacy:
- Your files stay on your device — nothing is uploaded to a server
About this tool
Hash any text with SHA-256, SHA-384, SHA-512, SHA-1 or MD5 (via a tiny local fallback for the legacy case). Compare digests to verify file or message integrity.
How to use it
- Paste the text.
- Pick the algorithm.
- Copy the hex digest.
Frequently asked questions
Is my input uploaded?
No. Hashing uses the Web Crypto API inside your browser — input never leaves your device.
Which algorithm should I use?
SHA-256 for general integrity, SHA-512 for stronger digests, SHA-1/MD5 only for legacy compatibility (both are broken for security use).
Can a hash be reversed?
No — hashes are one-way by design. You verify data by re-hashing it and comparing digests, never by decoding.