Instant Username Search is a free and open-source web app to check if a username is available on services like Facebook, Instagram, Reddit, GitHub and much more. It's available online or as a self-hosted app.

Chirp.blue is described as 'Elon Musk tweeted that Twitter is finally going to purge inactive accounts. This means that you can finally get your desired handle, but you have to be quick!' and is an website. There are six alternatives to Chirp.blue, not only websites but also apps for Windows, Self-Hosted and SaaS. The best Chirp.blue alternative is Instant Username Search, which is both free and Open Source. Other great sites and apps similar to Chirp.blue are Namechk, KnowEm, Available.FYI and 360username.
Instant Username Search is a free and open-source web app to check if a username is available on services like Facebook, Instagram, Reddit, GitHub and much more. It's available online or as a self-hosted app.

Use Namechk to see if your desired username or vanity url is still available at dozens of popular Social Networking and Social Bookmarking websites. Promote your brand consistently by registering a username that is still available on the majority of the most popular sites.

Search over 550 popular social networks, over 150 domain names, and the entire USPTO Trademark Database to instantly secure your brand on the internet.

Available.FYI tells you if that username you've always wanted becomes available on Twitter, Instagram, TikTok, Reddit, Facebook, and more.

360username helps you find, check, and secure the same username across the internet. You can instantly search your preferred name across more than 90 platforms to see where it’s available.




7thAmigo.com provides 100% whitehat and manual Web 2.0 profiles creation service. Use it for brand protection, reputation management, SEO, etc.