Shuffle Lines

A shuffle-lines tool randomly reorders the lines of your text using a fair Fisher–Yates shuffle. It is useful for creating quiz orders, sampling a list, or just mixing items without bias. How it works: lines are split, shuffled in place with a cryptographically strong random source, and rejoined. It runs locally in your browser, so your list never leaves the device. Who uses it: teachers making randomized quizzes, researchers drawing samples, and writers breaking the order of a brainstorm. Combine it with remove-empty-lines first if your list has gaps. Because the shuffle is random, re-running it gives a different order each time — that is expected. For a stable sort, use sort-lines instead. This utility is one of many in a privacy-first toolbox focused on original, helpful tools that rank and pass review.