ランダム抽選
ランダム数字、サイコロ、コイン投げ＆リスト抽選！
ランダム選択ツールとは？
The Random Picker fairly selects random items from any list you provide — perfect for making decisions, running raffles, picking teams, choosing restaurants, or settling debates. True randomness ensures every option has an equal chance of being selected. Decision fatigue is a real psychological phenomenon where the quality of decisions deteriorates after making many choices. Having a random picker eliminates the stress of trivial decisions and ensures fairness when multiple people are involved. Enter your options as a list, and the tool will randomly select one (or more) using a cryptographically secure random number generator. You can pick single items, multiple items, or randomize the entire order of your list.
- ✓ 名前やアイテムのリストから即座にランダム抽選
- ✓ 重複ありや複数名同時当選の設定も可能
- ✓ チーム分け・当番決め・メニュー選びに最適
- ✓ Cryptographically secure randomness for truly fair selection
- ✓ Multiple modes: single pick, multi-pick, and full list shuffle
よくある質問
▶本当にランダムですか？
はい！ブラウザの暗号化乱数生成器（crypto.getRandomValues）を使用し、暗号学的に安全な乱数を提供します。
▶くじ引きに使えますか？
日常的な抽選や決定に最適です。公式のくじ引きには、現地の規制で定められた認定乱数生成器をご使用ください。
▶コイン投げはどう動作しますか？
各投げは暗号学的ランダム性を使用した独立した事象で、表と裏の確率は正確に50/50です。
▶Is the selection truly random?
Yes. The picker uses your browser's cryptographic random number generator (crypto.getRandomValues), which provides high-quality randomness suitable even for security applications. Every option has a mathematically equal probability of being chosen.
▶Can I pick multiple items at once?
Yes. You can select how many items to pick from your list. This is useful for forming teams, selecting multiple winners from a raffle, or creating random subsets from a larger group.
▶What are some common uses for a random picker?
Popular uses include choosing where to eat, picking team members for group projects, running giveaways or raffles, deciding movie or game night selections, assigning tasks fairly, and creating random workout routines.
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