The Text Repeater takes any string and duplicates it as many times as you specify, with a choice of separator: new line, space, comma or nothing at all. It sounds simple, but it solves several real problems. Developers use it to build a payload big enough to test how an API behaves past a 10 KB body limit; designers use it to fill a scrolling list with a hundred identical rows; teachers generate repetition drills; and marketers check whether a platform collapses repeated characters. Everything is generated locally, so a 50,000-line output never leaves your machine and there is no upload wait.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.