Developer Utilities

Username Availability Checker

Check username availability across 80+ social media, developer, gaming, design, and domain platforms instantly from a single search.

Try:

Related Tools You Might Need

BMI Calculator Calculate your Body Mass Index (BMI) instantly. Support for Metric and Imperial units, healthy weight ranges, and personalized weight targets.
Epoch Time Converter Convert Unix epoch timestamps to human-readable date-times (UTC and local) and vice versa. Includes a real-time updating Unix clock.
APA 7th Edition Citation Generator Generate APA 7th Edition citations for books, websites, and journal articles online instantly. Copy formatted HTML references.

What is this tool?

A Username Availability Checker is a utility that checks if a specific handle or name is available to register across various online platforms, from social media (Instagram, X, TikTok) to developer platforms (GitHub, npm, PyPI) and domain registries (.com, .io, .ai). This allows creators, developers, and brands to secure a consistent identity across the web.

How to use it

1. Enter the username you want to check in the search input.

2. Click "Check Availability" or press Enter to run parallel lookups.

3. Browse the platform cards, filter results by status, or view profile links if taken.

4. Save your findings by copying the username, sharing search results, or downloading the full scan as a JSON report.

Pro tips

  • Save usernames you plan to use to your Favorites for quick retrieval.
  • Check Domain results to see if the matching .com, .dev, or .ai domains are free for your website.
  • Review the Recently Checked list to recall usernames you queried in earlier sessions.

Frequently asked questions

Is it safe to check usernames here?

Yes. We only perform real-time lookups and do not save, store, or log any usernames you check. Your ideas and brand handles remain entirely private.

How does the tool check availability?

Since browsers block direct requests to external websites due to security policies (CORS), we route the checks through our server. The server performs HTTP requests, official API calls, or DNS record checks depending on the target platform.

Why do some platforms show "Unknown"?

Some websites employ aggressive DDoS protection (like Cloudflare Turnstile) or block automated server-side requests. When a check is blocked or times out, we return "Unknown" instead of failing the entire search.

Can I check domain names too?

Yes! We perform live DNS lookups for popular domains (.com, .io, .dev, .ai, .app) using Cloudflare DNS-over-HTTPS. If no DNS records exist, the domain is marked as Available.