随机子集抽取
从你的列表中随机数量的项目。
Pick a random-sized subset of your list — size somewhere between min and max.
0 项
点击 选取子集 查看结果。
选项
最近结果
- 暂无历史。
常见问题
How is subset size chosen?
The size is picked uniformly at random in the inclusive range from your minimum to your maximum, so every allowed size is equally likely.
Does order matter?
No. The output shows the order in which items were drawn, but every possible subset has an equal chance of being chosen.
Is the draw really random?
Yes. Both the size and the items are selected with the Web Crypto API (crypto.getRandomValues) for unbiased, repeat-free sampling.
Is my list uploaded?
No. The whole pick happens in your browser and your list is never sent to a server, so it works even offline.
相关随机器
Further reading
- Pick several names at once, not one slow draw at a time
When you need three winners or five volunteers, drawing them one by one invites doubt and double-takes. Here's how a multiple random picker deals a whole batch of unique names in a single click, and when to allow repeats.
- Draw a random-sized sample from a list, not just a fixed number
Sometimes you don't want exactly five — you want "a few, but I don't want to decide how many." Here's how a random subset picker draws both the size and the members of a sample, and when that beats picking a fixed count.
- 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.