Hash Generator
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes instantly in your browser. Nothing is sent to any server.
What is a hash function? Read our guide →What is a hash function?
A hash function takes an input of any size and produces a fixed-length string called a digest or checksum. The same input always produces the same output, but even a single character change produces a completely different hash.
Hash functions are used to verify file integrity, store passwords (SHA-256 and above), generate cache keys, and sign API requests.
MD5, SHA-1, SHA-256 and SHA-512
Four algorithms cover almost every use case, from legacy checksums to modern security.
Client-side, no data sent
All hashes are computed directly in your browser using the native Web Crypto API (SHA family) and a pure JavaScript MD5 implementation. Your input never leaves your machine.
This makes the tool safe to use with sensitive data such as passwords, tokens, or private keys, though as a general rule you should never hash production secrets in a web tool.