Checking a username one platform at a time is slow, and it's common to land on a great handle only to find it's taken somewhere you need it. This tool checks your desired username against all seven major platforms at once and suggests ten close alternatives if it's not fully available everywhere.
Free Mode — bios are written by a rule-based engine running in your browser, not a live AI API call. Here's exactly how that works.
No sign-up. No email. Bios generate locally.
Curious how the check works and what changed recently? See the username checker status and changelog.
A handle that matches (or nearly matches) across every platform makes you easier to find, easier to remember, and harder to impersonate. The cost of picking a username platform-by-platform, without checking availability elsewhere first, is ending up with three or four different handles for the same identity — confusing for anyone trying to follow you across networks.
Because availability checks rely on each platform's public profile pages rather than an official (and mostly private) availability API, results are a strong heuristic rather than a 100% guarantee — always confirm directly on a platform before building a brand around a handle it reports as available.
It's a heuristic based on whether a platform's public profile page responds as existing or not, checked directly by our own server. It's usually right, but always verify directly on the platform before committing to a handle.
Some platforms rate-limit or block automated checks (Instagram in particular blocks this fairly aggressively); when a check genuinely can't complete, we tell you honestly rather than guess.
No — it's free, requires no account, and the check runs from your own browser.