Hash Generator (MD5, SHA-1, SHA-256, SHA-512)

About Cryptographic Hashes

A cryptographic hash function maps any input — a string, a file, a JSON blob — to a fixed-length fingerprint. The same input always produces the same hash; even a single-bit change produces a completely different output. Hashes are used for content fingerprinting, cache keys, integrity checks, and (for the strong algorithms) digital signatures and password storage.

How to use

Paste text into the input and press Hash. The tool computes MD5, SHA-1, SHA-256, and SHA-512 simultaneously and shows each as hex. Click Copy on any row to put that hash on your clipboard.

A note on MD5 and SHA-1

MD5 and SHA-1 are cryptographically broken — adversaries can construct different inputs with the same hash in seconds. They are still useful for non-security purposes like content fingerprinting, file de-duplication, or cache keys. For passwords, signatures, integrity checks against an attacker, or anything else security-sensitive, use SHA-256 or stronger.

Privacy

Hashing happens entirely in your browser using the platform's WebCrypto API (and a small MD5 library). Your input is never uploaded.