What is a hash generator?
A cryptographic hash function turns any input — a word, a password, a whole document — into a fixed-length string of characters called a hash or digest. The same input always produces the same hash, but even a tiny change to the input produces a completely different one, and the process cannot be reversed to recover the original text. This tool generates MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text instantly.
Everything is computed locally in your browser using the native Web Crypto API (with a self-contained MD5 implementation), so the text you type is never uploaded to a server.
The hash algorithms compared
- —MD5 — 128-bit, fast, but cryptographically broken. Fine for checksums, never for security.
- —SHA-1 — 160-bit, also deprecated for security due to collision attacks.
- —SHA-256 — 256-bit, part of the SHA-2 family and the modern default for integrity and signing.
- —SHA-384 / SHA-512 — larger SHA-2 variants offering greater output size and margin.
Common uses
Hashes are used to verify file integrity (comparing a downloaded file's hash to the published one), to fingerprint data, to index content, and as building blocks inside digital signatures and password storage schemes.
Important: a plain hash is not a safe way to store passwords on its own. Real password storage uses slow, salted algorithms such as bcrypt, scrypt or Argon2. Use MD5 and SHA-1 only for non-security checksums, and prefer SHA-256 or stronger everywhere security matters.