Twitch - Username Availability
This page allows you to look up available Twitch usernames in case you have one you would like to change to.
You're limited to 20 username lookups per minute (to prevent abuse).
Keep in mind that this website is unofficial and that I am unable to help you with any usernames you may want.
Sadly due to abuse by automated behavior, I've had to implement a captcha in addition to the username lookup limit. I've tried to make it as convenient as possible for legitimate users, while also keeping most of the bots out. Sorry for the inconvenience.
If you end up having issues using this page because of that, feel free to contact me using the contact information on the homepage.
Just because a username seems available on the Twitch website (e.g. by visiting the channel URL), it might say unavailable here. Suspended and/or deleted channels will not show up on the Twitch website when you visit their channel URL, but their username is still "claimed".
The same goes for previous usernames of Twitch partners as they are not "recycled" per Twitch's username rename and recycling policies.