By ToolzHive
About this tool
Check whether a username is taken on GitHub, GitLab, Docker Hub, Mastodon, Bluesky and other platforms.
How to use Username Checker
- Enter the username you want.
- Click Check username and watch the results appear.
- Grab the available names quickly, and open taken profiles to see who has them.
Worked example
Before launching a project called “hivekit”, check that the same handle is free on GitHub, npm-style registries and social sites so your brand is consistent.
Why are only some platforms included?
Only platforms with a public API that clearly says whether a name exists are checked, so results are not guesses.
What does “Could not check” mean?
The platform did not answer or limited our requests. Try again later or check the site directly.
Put this guide into practice
- Username Checker — Check whether a username is taken on GitHub, GitLab, Docker Hub, Mastodon, Bluesky and other platforms.