A hash is a fixed-length fingerprint of your data. Change one letter and the hash changes completely. Hashes are used to verify downloads and detect changes.
How to use it
- Open Hash Generator and type or paste your text.
- Read the MD5, SHA-1, SHA-256 and SHA-512 hashes.
- Copy the one you need.
Which hash to use
- SHA-256 is a good default for checking integrity.
- MD5 and SHA-1 are fine for checksums but are not safe for security.
- Never store passwords as a plain MD5 or SHA hash. Use a purpose-built password hashing method.
Check a download
If a website publishes the SHA-256 of a file, compare it with the hash of your copy. A match shows the file was not changed on the way.
Frequently asked questions
Can a hash be reversed?
No, a hash cannot be turned back into the original text, although weak or common inputs can be guessed.
Is my data uploaded?
No. Everything runs in your browser, so what you type never leaves your device.
Ready to start?
Open Hash Generator