List Randomizer

The tool uses a Fisher–Yates shuffle, moving backward through the list and swapping each item with a random eligible position. It runs in linear time and avoids the uneven distributions caused by sorting with a random comparator. Each shuffle can still coincidentally resemble the original order. This browser randomizer is appropriate for study and casual ordering, but it is not a cryptographically auditable lottery system.

If you can answer a list only in textbook order, neighboring items may be acting as cues. Shuffle vocabulary, dates, and questions to test whether each item can be retrieved independently. Do not randomize material where the sequence itself is the learning goal; instead use both shuffled identification and a separate full-order reconstruction. Move misses into a shorter list rather than repeatedly testing everything.

Your inputs and calculations stay in this browser, and no account is required. Save or print the result if you need a record, then turn it into one concrete next action. A calculator is most useful when it changes the next study session: isolate the weakest material, express it as a question you can answer without notes, and schedule another attempt after a short delay. Official rules from your school, course, test provider, or assignment always take priority over this planning estimate.