Line Shuffler is a simple tool that randomly mixes up lines of text. Just paste your list, click a button, and get a shuffled version in seconds!
Why Use a Line Shuffler
- Randomizing raffle or giveaway entries: shuffle a list of names so the order doesn't reveal any bias.
- Creating quizzes: mix up answer choices or trivia questions before publishing.
- Randomized testing: shuffle test cases or data rows to catch order-dependent bugs.
- Fair task assignment: randomize a list of names, teams, or tasks for an unbiased draw order.
How to Use the Line Shuffler
Paste your list into the input box, one item per line, and click "Shuffle Lines." The output box shows the same items in a new random order. Click "Copy Result" to grab the shuffled list for pasting elsewhere.
Built on a Real, Unbiased Shuffle
A common shortcut used in many simple shuffle scripts online is sorting an array with a random comparator, like array.sort(() => Math.random() - 0.5). It looks like it works, but it's a well-documented source of bias: some orderings end up more likely than others because of how sort algorithms compare elements, so results skew in subtle, hard-to-notice ways over repeated shuffles.
This tool instead uses the Fisher-Yates (Knuth) shuffle, the standard algorithm for producing a genuinely uniform random order, where every possible arrangement of your list is equally likely to appear.
Frequently Asked Questions
Is the shuffle truly random, or could some orders repeat more often?
It uses the Fisher-Yates algorithm, which is mathematically proven to give every possible order an equal chance — unlike simpler sort-based shuffle tricks that can be biased.
Does shuffling remove blank or duplicate lines?
No. Every line you paste, including blank ones, is kept and simply reordered — nothing is removed or altered in content, only the order changes.
Can I use this for a random drawing or giveaway?
Yes, that's a common use case. Paste all entries, shuffle, and treat the new top-to-bottom order as your randomized draw order.
Is my list uploaded anywhere when I use this tool?
No. Shuffling happens entirely in your browser; nothing you paste is sent to a server or stored.
Will shuffling the same list twice give the same result?
No. Each click generates a new random order, so shuffling the same input again will very likely produce a different arrangement.
Related Free Tools
Need to clean up a list before or after shuffling it? Pair this with the Clean List Generator from the same free tools collection.