In twitter this happens when you input the '@' symbol and it then suggests users as you type more characters.

In Slack this also happens but without needing the '@' symbol.

So far I have heard of 'incremental searching' and 'search-as-you-type', but these refer to search boxes and not inline within a text area/post box.

What is this feature called and are there any resources out there that can help me create this feature myself?


1 Answer 1


I believe it is usually referred to as (username) autocompletion (not to be confused with form autocompletion).

A quick search gives me typeahead.js which is made and used by Twitter.

Some more examples:

  • Thank you! i just couldn't think of the term for the life of me, this is what I was looking for :)
    – T. For
    Commented Sep 20, 2016 at 14:11

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