Generate MD5, SHA-1, SHA-256, and SHA-512 Hashes Instantly in Your Browser (opens in new tab)

A free, client-side tool for hashing text — no installation, no account, no server. What Is a Hash and When Do You Need One? A hash function takes any input — a word, a sentence, a JSON blob — and produces a fixed-length string of characters. The same input always produces the same output. Change even a single character and the output changes completely. Developers reach for hashing in a surprisingly wide range of situations: Verifying data integrity — confirm a file or string has not been ta...