Hash Generator

A hash function takes any input and produces a fixed-length string of characters called a digest. The same input always produces the same output, but even a tiny change in input produces a completely different hash.

Common algorithms include MD5 (128-bit, fast but insecure), SHA-1 (160-bit, deprecated for security), SHA-256 (256-bit, widely used), and SHA-512 (512-bit, strongest). Each serves different use cases from checksums to digital signatures.

Hash functions are one-way — you cannot reverse a hash to get the original input. They are used for password storage, file integrity verification, digital signatures, and blockchain technology.