Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any text. Free online hash calculator.

What is a Hash?

A hash function converts input data of any size into a fixed-size string. Hash functions are one-way — you cannot reverse a hash to get the original input. They're used for password storage, data integrity verification, and digital signatures.

Supported Algorithms

MD5 — 128-bit, fast but not collision-resistant (legacy use only)
SHA-1 — 160-bit, deprecated for security
SHA-256 — 256-bit, widely used and secure
SHA-512 — 512-bit, most secure option