ランダムリストシャッフラー
リスト全体を公平にランダムな順序で並べ替えます。
Free online list randomizer using a fair Fisher-Yates shuffle. Paste any list of names, prizes, tasks, or items and get a randomized order.
Paste your list. One item per line. Names, prizes, tasks — anything.
0 項目
リストをシャッフル をクリックすると結果が表示されます。
オプション
最近の結果
- 履歴はまだありません。
仕組み
- Paste your list. One item per line. Names, prizes, tasks — anything.
- Shuffle. Click Randomize. We use a Fisher-Yates shuffle for a perfectly uniform result.
- Copy, share, or export. Use the buttons under the result. Share links round-trip your list.
よくある質問
Is this truly random?
Yes — we use the browser's crypto.getRandomValues to drive an unbiased Fisher-Yates shuffle. Each possible permutation has exactly the same probability.
Does my list get sent anywhere?
No. The shuffle runs entirely in your browser, and your list never leaves your device or touches a server.
Can I reproduce a shuffle later?
Yes. Open Options and set a seed value; the same seed plus the same list always produces the identical order, which is useful for audits or sharing a verifiable result.
Is there a size limit?
Tens of thousands of items shuffle instantly. Very large lists above roughly 100,000 entries may slow your browser down.
関連ランダマイザー
Further reading
- Proving a shuffle wasn't rigged: seeded shuffles and the duplicate trap
Anyone can claim a shuffle was fair after the fact. A seeded shuffle lets you prove it — and the copy-paste duplicate that quietly stacks the odds is the other thing worth catching before you hit Randomize.
- Shuffling a list without bias: the one-line mistake almost everyone makes
The most popular way to shuffle a list on the web is also subtly broken. Here's why sort-by-random gives you a lopsided order, what a fair shuffle actually looks like, and when you want a shuffle versus a draw.