Username Checker
Verify a handle across 13 developer and creator platforms
What it does
Check whether a username exists across 13 developer and creator platforms, including GitHub, YouTube, Behance, Flickr, SoundCloud, HackerOne, Bitbucket, Dev.to, Goodreads, Blogspot, Itch.io, Gumroad, and Buy Me a Coffee. Every platform was verified live by comparing a real handle against a nonsense one, so a JavaScript-only or always-200 site can't fake a match. No login, no API key.
Built in
- ✓ 14 platforms checked per username, including GitHub, YouTube, Behance, Flickr, SoundCloud, and HackerOne
- ✓ Live verification methodology: compares a real handle against a nonsense handle per platform to avoid false positives
- ✓ HTTP status and profile URL returned per platform
- ✓ Run-level summary of platforms checked and platforms found
- ✓ No login, no API key, no browser rendering
Guides & tutorials
Pull the Top 100 Best Sellers for Every Amazon Subcategory in One Run
Walk an Amazon department with Amazon Bestsellers Scraper and get the top 100 of every subcategory in one run, with a hard cap on lists and cost.
Compare an App's App Store Reviews Across Countries
Read one app's App Store reviews in many countries in one run with App Store Reviews Scraper, then compare ratings and top complaints country by country.
Find the Decision Makers at Your Target Accounts by Job Title
Turn a list of company domains into a CRM-ready CSV of people by job title, with LinkedIn URLs, labeled emails and a company check on every row.
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Common questions
Which platforms does this check? +
14 developer and creator platforms including GitHub, YouTube, Behance, Flickr, SoundCloud, HackerOne, Bitbucket, Dev.to, Goodreads, Blogspot, Itch.io, Gumroad, and Buy Me a Coffee.
How does it avoid false positives on platforms that always return 200? +
Each platform was verified live by comparing a real, known handle against a nonsense one; only platforms that return genuinely distinct responses for real-versus-fake handles are included, so a JavaScript-only or always-200 storefront can't fake an existence match.
Do I need an API key or browser? +
No. It's direct HTTP fetches per platform: no authentication, no headless browser, no proxy.
What are the main use cases? +
Checking handle availability across platforms before committing to a brand or project name, verifying a claimed username for a candidate or contact actually exists, and OSINT workflows that need a fast multi-site existence check instead of visiting each site by hand.
How does pricing work? +
Pay per result: from $1.00 per 1,000 username checks on Apify's higher plans, plus a $0.005 start fee per run. A username is counted once across every platform you check, not once per platform.
Try it on Apify.
Pay only for results delivered. No credit card required to sign up.