Tags picker control

Question

Is there any good (free or paid) JavaScript controls, which is like StackOverflow tags picker? (You can see it while asking new question under the title "Tags").

Answer 1

jQuery UI Autocomplete configured for multiple values is a pretty good start. I would think with a little bit of re-restyling that it could be a lot more like the SO tag browser; also it's free.

Answer 2

Chosen is a good example, they have a nice multi-select option.