Hash Generator

A hash function turns any input into a fixed-length fingerprint: the same input always produces the same hash, while changing even one character produces a completely different one, and the original can't be recovered from the output. Those properties make hashes the standard tool for verifying file integrity, comparing values without storing them, generating cache keys and deduplicating data.

This generator computes four algorithms simultaneously as you type — MD5, SHA-1, SHA-256 and SHA-512 — because different systems expect different formats, and seeing all four at once beats re-running a tool. The SHA family is computed with the Web Crypto API, the browser's native cryptographic implementation, so results are fast and exactly match what openssl or any server-side library produces for the same input.

An honest note the tool itself displays: MD5 and SHA-1 are cryptographically broken — practical collision attacks exist for both — and are included only because legacy systems, checksums and non-security use cases still expect them. For anything security-related, use SHA-256 or above; for password storage specifically, none of these are appropriate — passwords need a deliberately slow algorithm like bcrypt or Argon2, which is a different job entirely.