What is a hash?
A hash function turns any input into a fixed-length fingerprint. The same input always gives the same hash, while even a tiny change gives a completely different one. Hashes are used to verify downloads, detect changes and store data safely.
Text and files are hashed in your browser with the Web Crypto API, so nothing is uploaded.
How to use the Hash Generator
- 1Type text or choose a file.
- 2All hashes are calculated at once.
- 3Copy the algorithm you need.
Frequently asked questions
Which algorithm should I use?
SHA-256 for most uses. MD5 and SHA-1 only for compatibility or simple checksums.
Can a hash be reversed?
No. Hashing is one-way.