List Randomizer

1. Paste your list, one item per line; blank lines are removed automatically.
2. Optionally remove duplicates and enable numbering for the output.
3. Press Shuffle list to randomize the order.
4. Press Shuffle again for a new order, or copy and download the result as TXT or CSV.

The randomizer applies a Fisher–Yates shuffle to your items. Fisher–Yates walks from the end of the list to the start and swaps each position with a randomly chosen position at or before it. When the random index comes from crypto.getRandomValues() with unbiased integer sampling, the result is a mathematically uniform permutation: every possible ordering is equally likely, including the original one.

This matters because common shortcuts are biased. Sorting by “random” values, for example, gives some orderings more weight than others. The secure shuffle avoids that entirely, which is why the tool is suitable for draws, assignments and test ordering where fairness is auditable.

Duplicate handling is explicit: with duplicates preserved, each duplicate is shuffled independently; with removal enabled, identical lines collapse to their first occurrence before the shuffle. Processing happens in your browser and nothing is uploaded.

• Presentation order: paste 12 speakers and shuffle for a transparent running order.
• Exam questions: shuffle 50 question labels to create a different paper each time.
• Task rotation: deduplicate a list of chores, then shuffle to assign them fairly.
• CSV export: number the shuffled result and download a CSV for spreadsheets.

• Randomizing agendas, speaker orders and classroom activity sequences.
• Creating different versions of quizzes and worksheets from the same item bank.
• Shuffling playlists, task lists, workout orders and game turns.
• Randomizing seating charts, reading orders and work queues from a pasted list.
• Fairly reordering any pasted list without uploading it to a service.