Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Hash any text with MD5, SHA-1, SHA-256, or SHA-512 — all in your browser.
About Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Hash Generator computes a cryptographic fingerprint of any text input using MD5, SHA-1, SHA-256, and SHA-512. Hashes are the foundational primitive behind file checksums, content-addressable storage, digital signatures, and (with significant additional care) password storage. The tool produces all four hashes simultaneously, so you can pick the one your downstream system expects without re-pasting.
Worked example: the input 'hello' hashes to '5d41402abc4b2a76b9719d911017c592' (MD5), 'aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d' (SHA-1), '2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824' (SHA-256), and a 128-character SHA-512 digest. Change a single character of input and every hash changes completely — the avalanche property — which is precisely why hashes work as content fingerprints.
A few notes on which algorithm to pick. SHA-256 is the everyday default for new work — file checksums, content addressing, integrity verification — and is supported everywhere. SHA-512 produces a longer digest at modest extra cost, suitable when collision-resistance margin matters. SHA-1 and MD5 are still useful for non-cryptographic checksums (matching files, deduplicating content) but are broken for security purposes: both have practical collision attacks demonstrated, so neither should be used for signatures, certificates, or anywhere an adversary could exploit them. For password storage specifically, none of these are suitable on their own — use a key-stretching function like bcrypt, scrypt, or Argon2.
All hashing runs in your browser using the Web Crypto API. Inputs are never sent over the network, which matters when you are hashing tokens, secrets, or other sensitive content.