Hash Generator
A free, browser-based file tool. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Runs entirely in your browser — nothing is uploaded or stored.
How to use this calculator
- Paste your text.
- Press Generate for SHA-1, SHA-256 and SHA-512.
How it works
A hash turns any input into a fixed-length fingerprint. The same input always gives the same hash, but it can't be reversed — useful for checksums and verifying data. Computed in your browser with the Web Crypto API.
Frequently asked questions
What about MD5?
MD5 is outdated and insecure; SHA-256 is the safe modern choice.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.