Your desired username
Tip: short, memorable, no numbers if you can avoid them.
Checklist
Enter a username and press Build checklist.
Build a username availability checklist free. Enter your desired handle once and get one-tap check links for every major platform, with a progress tracker.
Enter a username and press Build checklist.
Type the handle you want (without the @) and press Build checklist. You get one row per platform: Instagram, TikTok, YouTube, X, Facebook, Threads, Twitch, GitHub, Reddit, Pinterest, LinkedIn, Snapchat and .com domains, each with a Check button that opens the real profile URL for that exact username. Tick each row as you verify it and the progress counter tracks how far you have got.
Platforms aggressively block automated username lookups, so no honest tool can check them all for you in one click. Opening the real page is the reliable method: if the profile URL shows an existing account, the name is taken; if it 404s, it is likely available.