Social Username Checker
See whether a username is free on GitHub, Bluesky, Telegram, Medium, Pinterest and 14 more networks at once.
How to use it
- 01
Enter a username
Letters, numbers and underscores work on most networks.
- 02
Run the check
We ask each network whether someone has that name, using its public profiles.
- 03
Claim what's free
Register the name quickly — availability can change.
Questions
Why does a free name fail to register?
Some networks reserve names, or block names that were used before.
How accurate is the check?
It is a quick look at each network’s public profiles. Instagram, X, TikTok, Facebook, Reddit and some others block automated checks, so they aren’t included — check those on the site itself. On Mastodon we check mastodon.social, the largest server.
Should my domain and usernames match?
It helps people find you. Check the domain too with a WHOIS lookup.