Free 100% In-Browser Tool

List Randomizer: Shuffle Lists & Names Randomly Online

Shuffle lists, names, and items into cryptographically random order.

Quick Answer:Paste your list of items (one per line or comma-separated), click 'Shuffle List', and get an unbiased randomized order immediately.

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Processed in your browser. Files are never uploaded.

How to Use the List Randomizer: Shuffle Lists & Names Randomly Online

for (let i = n - 1; i > 0; i--) { const j = cryptoRandom(i + 1); swap(arr[i], arr[j]); }

Iterates from the last element to the first, swapping each with an unbiased random preceding index.

Input: Alice Bob Charlie David

Explanation: Unbiased random permutation of giveaway contestants.

Result: Charlie Alice David Bob

Input: Team A, Team B, Team C

Explanation: Fair meeting presentation schedule.

Result: Team B, Team C, Team A

Input: Q1, Q2, Q3, Q4

Explanation: Shuffles questions to prevent memory bias.

Result: Q3, Q1, Q4, Q2

How does this list randomizer ensure fairness?▼

It uses the Fisher-Yates shuffle algorithm with `crypto.getRandomValues()`, guaranteeing every permutation has equal probability.

Why is `Math.random() - 0.5` sorting flawed?▼

Naive random sort does not compare all pairs uniformly, resulting in statistically biased orderings.

Can I shuffle names separated by commas?▼

Yes, our tool supports both line breaks and comma-separated inputs.

Can I shuffle multiple times?▼

Yes, click 'Shuffle List' as many times as you like for a new random sequence.

Is this tool free?▼

Yes, Toolzy generators are 100% free with no account needed.

Is my list uploaded?▼

No, all shuffling runs locally on your machine in JavaScript.

Item Count	Total Possible Permutations	Algorithm Used
4 items	24 permutations	Fisher-Yates (unbiased)
5 items	120 permutations	Fisher-Yates (unbiased)
10 items	3,628,800 permutations	Fisher-Yates (unbiased)
20 items	2.43 × 10¹⁸ permutations	Fisher-Yates (unbiased)

•Using naive sort methods like `arr.sort(() => Math.random() - 0.5)` which produce heavily biased non-uniform permutations.
•Forgetting to trim empty lines before shuffling.