Hash Generator - MD5, SHA-1, SHA-256 Free Online

Generate MD5, SHA-1, SHA-256 and other hash values from any text. Free, instant, works in browser.

What is a Hash?

A hash is a fixed-length string generated from input text using a mathematical algorithm. Same input always produces same hash.

Common Hash Algorithms

• MD5 - 128-bit, fast, not secure
• SHA-1 - 160-bit, deprecated
• SHA-256 - 256-bit, secure, widely used
• SHA-512 - 512-bit, very secure

Uses for Hashes

• Password storage - Never store plain passwords
• File verification - Check file integrity
• Digital signatures - Verify documents
• Checksums - Verify downloads