List Randomizer
Shuffle any list with cryptographically secure randomization
Tip: Paste your list (one item per line) or type items directly. Great for raffles, team selections, and random ordering.
Output Options
Randomized List
Common Uses
Social Applications
- Team selection for games
- Raffle or prize drawings
- Secret Santa assignments
- Random seating arrangements
Professional Uses
- Randomized testing orders
- Unbiased sample selection
- Presentation sequence shuffling
- Data anonymization
Shuffling Algorithms Explained
Fisher-Yates Shuffle
The standard unbiased algorithm that guarantees every permutation is equally likely. Works by iterating through the list and swapping each element with another at random.
Cryptographically Secure
Uses your browser's cryptographic random number generator for maximum unpredictability. Important for security-sensitive applications where bias could be exploited.
Custom Seed Shuffle
Generates reproducible results using a seed value. The same seed with the same list will always produce the same shuffled order - useful for testing or verifiable randomness.
Frequently Asked Questions
How many items can I shuffle at once?
The tool can handle lists with up to 10,000 items efficiently. For larger lists, consider splitting them into smaller chunks.
Is the shuffle truly random?
With the cryptographic algorithm, yes - it uses your browser's secure random number generator. The Fisher-Yates method is mathematically unbiased.
Can I save lists to shuffle again later?
Yes! Use the "Save as Preset" button to store your list in browser storage. It will remain available until you clear your browser data.
How does the custom seed work?
The seed determines the shuffle order. Identical seeds with identical lists produce identical shuffles. Great for reproducible results in testing.
Are duplicate items handled differently?
By default, duplicates are treated separately. Check "Unique items only" to remove duplicates before shuffling.