The Text Shuffler randomises the order of the lines, words or characters you paste in. It uses the Fisher-Yates algorithm, which visits each position once and swaps it with a randomly chosen earlier position — the only widely used shuffle that produces every possible ordering with equal probability. A naive 'sort by random number' approach looks fine but is measurably biased, which matters when you are drawing prize winners or randomising exam questions. Teachers shuffle question banks, event organisers shuffle entrant lists, and developers shuffle fixture data to catch code that accidentally depends on input order.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.