Mastodon
Mastodon username checker
Type a name to see if it's free on Mastodon. To check whole lists, or every short name at once, sign in and use the dashboard.
Free checks are limited to 5 every 10 minutes. Signed-in users get 100 free checks to start.
Mastodon name rules
| Length | 1 to 30 characters |
| Allowed | Letters, numbers and _ |
Checks mastodon.social, the biggest server.
Names that break these rules are marked invalid and don't use a check.
Check thousands of Mastodon names
- Paste a list or pick one. Every 3 letter, 4 letter or easy to say name, or your own list.
- Pick Mastodon and any other sites. One run checks them all side by side.
- Get free names sent to your Discord. Each free name is marked with how rare it is.
Is a name marked open really free?
A name is only marked open when Mastodon itself confirms nobody has it. If the site doesn't answer clearly, we mark it unverified instead of guessing. Claim a free name quickly, before someone else does.
Do you register the name for me?
No. avaliuser tells you which names look free. You claim them yourself on Mastodon.
Is avaliuser part of Mastodon?
No. avaliuser is an independent tool and isn't made by or linked to Mastodon.
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guns.lol
haunt.gg
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- Tumblr
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Start with 100 free checks.
Sign in with Discord and the key is in your DMs before the page loads.