X Username Checker
Type a username and the checker tells you instantly whether X allows it. Then open the profile link: a real profile means it is taken; a "page not found" means it is free or reserved. The same name is checked against every other platform's rules below, so you can claim one handle everywhere.
- Between 4 and 15 characters
- Only letters, numbers, underscores
- Cannot contain "twitter" or "admin"
- Underscores are the only punctuation allowed
Same name on other platforms
Platforms block other websites from reading whether a name is taken, so the honest way to check availability is to open the profile link: a real profile means it is taken, a "page not found" means it is free (or reserved). The format rules above are the official ones and are checked instantly.
X username rules
- 4–15 characters
- Letters, numbers, underscores
- Cannot contain "twitter" or "admin"
- Underscores are the only punctuation allowed
X handles are 4–15 characters of letters, numbers and underscores. They cannot contain "twitter" or "admin", and once you change yours, the old one is available to anyone the moment you save.
Why no tool can promise a name is free
X does not publish an availability API, and browsers block other websites from reading X's pages. Tools that claim to check live availability are either guessing from a cached list or asking you to trust a server-side scrape that breaks often. Opening the profile link is the one method that is always right, and it takes two seconds.
Picking a username that works everywhere
- Letters, numbers and underscores only: that satisfies every platform at once.
- Keep it under 15 characters so it also fits X and Snapchat.
- Avoid periods: fine on Instagram and TikTok, not allowed on X, Discord display or Pinterest.
- If your first choice is taken, "Suggest alternatives" adds common, brandable suffixes.
X username rules
- 4–15 characters
- Allowed: letters, numbers, underscores
- Cannot contain "twitter" or "admin"
- Underscores are the only punctuation allowed
Frequently asked questions
How do I know if a X username is available?
Enter it above and click the profile link. A profile page means it is taken; a not-found page means it is available or reserved by X.
Can I change my X username later?
Yes, from the profile settings on X.
Does it check other platforms?
Yes. The same name is validated against every platform's rules below, each with a profile link.
Related free tools
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