Hash generator
SHA-1, SHA-256, SHA-384, SHA-512, and MD5 — all in your browser.
Algorithm
Output
Frequently asked questions
What is hashing used for?
Verifying integrity (a file was not modified), storing passwords (with a salt and a slow algorithm like bcrypt or Argon2, NOT SHA), generating data fingerprints, and comparing content without sharing it. Hashing is one-way: it cannot be reversed.
Which algorithm should I use?
SHA-256 is the modern standard for integrity and signing. SHA-1 is cryptographically broken (only use it if an old tool demands it). MD5 is only good for casual checksums — never for security. For password hashing use bcrypt or Argon2, NEVER these algorithms.
Is my input sent to a server?
No. All SHA variants (SHA-1/256/384/512) use your browser's native Web Crypto API. MD5 runs as JavaScript in your tab. Nothing leaves your device.