n choose k

Given N things in a list, randomly choose K of them. Maybe you have a list of students and want to choose 25 of them for participation in a coding club. Problem solved.

Input lines into first box. Push the button. Chosen items are in the second box. Unchosen items land into the third.

Number:

This makes no allowances for things like:

• giving items a higher probability of being chosen
• allowing items to fill multiple slots (such as could be the case if you wanted to include all siblings should one be chosen)

If you wish to see how this was made, you can always view the source.