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Lizely

List Randomizer

Shuffle any list into a fair, random order instantly and privately in your browser.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Paste or type your list into the text box, with one item on each line.
  2. 2.Optionally tick 'Remove duplicate lines' to keep only the first occurrence of each unique entry.
  3. 3.Click the Shuffle button to randomize the order using the Fisher-Yates algorithm.
  4. 4.Read the shuffled list in the result box, and press Shuffle again anytime for a fresh order.
  5. 5.Click Copy to send the randomized list to your clipboard for use elsewhere.

About List Randomizer

The List Randomizer takes any list you paste in and rearranges it into a fair, random order. Put one item per line, press Shuffle, and every entry is dealt a new position with equal probability. There is nothing to install, no account to create, and no waiting on a server. Everything happens right inside your browser, so even a list of thousands of lines reorders in an instant.

Randomizing a list sounds simple, but doing it fairly is surprisingly easy to get wrong. This tool uses the Fisher-Yates shuffle, the algorithm mathematicians and engineers trust for unbiased ordering. It walks the list from the last item to the first, and at each step swaps the current item with one chosen from the positions that have not been fixed yet. The result is that every possible arrangement of your list is equally likely. Naive approaches, such as sorting by a random comparison, quietly favor some orders over others; Fisher-Yates does not. If you care that the outcome is genuinely fair, that difference matters.

People reach for a list randomizer in a lot of everyday situations. Teachers shuffle student names to call on people at random or to build groups without playing favorites. Managers randomize the speaking order for stand-up meetings and retrospectives so the same person does not always go first. Giveaway and raffle organizers paste in a column of entrants and shuffle to pick winners in a defensible, unbiased way. Writers and designers randomize prompts, colors, or ideas to break creative ruts. Gamers shuffle turn order, draft picks, or challenge lists. Researchers randomize the order of survey questions or test conditions to reduce order effects. Anyone who needs to draw straws, assign chores, seat guests, or settle a friendly argument can drop a list in and let chance decide.

Because the whole process is local, your list never leaves your device. Nothing is uploaded, logged, or sent across the network, which means you can safely shuffle sensitive material such as employee names, customer records, interview candidates, or private prize entries. When you close the tab, the data is gone. That privacy guarantee is not a marketing promise you have to trust; it is simply how a client-side tool works, since there is no server involved to receive your text in the first place.

The tool is intentionally minimal. Paste or type your items, one per line. Blank lines and stray spaces around each entry are cleaned up automatically, so a messy copy-paste still produces a tidy result. Turn on the optional duplicate remover if you want each unique line to appear only once before shuffling, which is handy when a spreadsheet export left repeats behind. Click Shuffle as many times as you like to get a fresh order each time, and use the Copy button to grab the randomized list for a document, email, or spreadsheet.

Whether you are running a classroom, a giveaway, a tournament bracket, or just deciding who buys coffee, this randomizer gives you an ordering you can stand behind: fast, fair, repeatable, and completely private.

Frequently asked questions

How random is the shuffle?
It uses the Fisher-Yates algorithm, which makes every possible ordering equally likely, so no position is favored. Randomness comes from the browser's built-in Math.random generator. That is statistically fair for everyday use like picking names, turn order, or giveaways, but it is a general-purpose generator and not cryptographically secure, so do not rely on it for high-stakes gambling, security keys, or legally binding lotteries.
Is my list uploaded or stored anywhere?
No. The entire tool runs in your browser and your list never leaves your device. Nothing is uploaded to a server, saved to a database, or logged. When you close or refresh the tab, the data is gone, so it is safe to shuffle private information such as names, emails, or prize entries.
What happens to blank lines and extra spaces?
They are cleaned up automatically. Empty lines are ignored, and leading or trailing spaces around each item are trimmed, so a messy copy-paste still produces a tidy shuffled list without stray blanks.
Can I remove duplicate entries before shuffling?
Yes. Turn on the 'Remove duplicate lines' option and each unique line is kept only once, based on its first appearance, before the list is randomized. Leave it off if you intentionally want repeated items to keep their extra weight in the shuffle.
Is there a limit to how many items I can shuffle?
There is no hard limit set by the tool. Because the shuffle happens locally and the Fisher-Yates algorithm is very efficient, lists with thousands of lines reorder almost instantly on a typical device.

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