Social media username checker

By FreeUsername · Reviewed October 18, 2026 · Editorial policy

Social networks are where a handle matters most, because it doubles as your profile link and the name people tag. Each page below checks one network and lists its own length and character rules, so you can see why a name that works on TikTok gets rejected on Snapchat.

The checks are not all built the same way. Some networks show a public profile page we can test. X answers through its sign-up form, so taken names show even when the account is suspended. Instagram we do not query at all, because Meta's robots.txt does not allow it, so that result is always Unknown with a link to check by hand.

A practical order for a new handle: check the network you care about most first, then run the full search on the home page to see the rest in one go. Keep the name short, avoid dots and underscores in odd places that people mistype, and say it out loud once. If it is hard to spell when you hear it, people will tag the wrong account.

22 social media checkers

Compare social media platforms

What each checker can do, and the length rule from each platform's own help pages. "Live" means the page checks a name for you; "Guide" means the platform can't be checked automatically, so the page shows how to check it yourself.

Platform	Check	Length rule
Instagram	Guide	The app caps usernames at 30 characters.
TikTok	Live	2 to 24 characters.
X (Twitter)	Live	More than 4 characters and no longer than 15 characters.
Discord	Live	At least 2 and at most 32 characters.
Snapchat	Live	3 to 15 characters.
Reddit	Guide	The sign-up form asks for 3 to 20 characters using letters, numbers, hyphens and underscores; Reddit's help center does not list these limits.
Pinterest	Live	Between 3 and 30 characters.
Threads	Guide	See page
Bluesky	Live	At least 3 characters.
Telegram	Live	At least 5 characters, according to Telegram's in-app help text.
Linktree	Live	Linktree's help center does not publish length or character limits; the change form tells you when a name is not accepted.
Mastodon	Live	Up to 30 characters, per Mastodon's source code.
VSCO	Guide	At least 3 characters.
Facebook	Guide	At least 5 characters.
LinkedIn	Guide	3 to 100 characters.
Quora	Guide	Not published in Quora's help center.
VK	Live	5 to 32 characters.
Truth Social	Guide	Not published in Truth Social's help center.
Lemon8	Live	Not published on Lemon8's web pages.
BeReal	Guide	Not published in BeReal's help center.
Weibo	Guide	4 to 20 characters.
Letterboxd	Guide	Not published in Letterboxd's help center.

Frequently asked questions

Can I check one handle on every social network at once?

Yes. The full username search on the home page runs the same name against every site in our list, social networks included. The pages here are for when you care about one network and want its rules next to the result.

Why does Instagram always say Unknown?

We stopped requesting Instagram profile pages on 14 October 2026 because Meta's robots.txt does not allow automated collection. Open instagram.com/name/ yourself, or type the name in the app's Edit profile screen.

Does "Not found" mean I can register the name?

Not always. A name can be reserved, banned or held by a deactivated account and still show no public profile. The sign-up or edit-profile form on the network itself gives the final answer.

Do you store the handles I check?

No. The name is sent to our server to run the check and is not stored or logged.

What if my handle is taken on one network but free on the others?

Pick a variation you can use everywhere rather than a different name per network. Adding a short word such as "hq", "real" or your field keeps it close to your main name. Run the variation through the full search before you commit.

Can I find out who owns a taken handle?

No. The checker only shows whether a public profile exists at that address. It does not reveal names, emails or any private data.

Other platform groups

FreeUsername is independent and not affiliated with any platform listed here. Results are leads to verify.