Validate a handle's format and generate safe variations for every platform's rules.
This checks format rules for each platform only. It does not look up live availability, since that would require sending your search to each platform's servers.
This tool checks whether a handle you're considering follows each major platform's formatting rules — allowed characters and length limits — and suggests alternative variations you can try if your first choice doesn't fit or turns out to be taken.
Every tool on this site runs entirely in your browser and never contacts an external server, which means this tool cannot check whether a username is actually already taken on Instagram, X, TikTok, Facebook or YouTube. Instead, it checks the rules each platform enforces on handles — length limits and allowed characters — so you can catch an invalid handle before you even try to register it.
Once a handle passes the format check here, the fastest way to confirm real availability is to try creating an account with that handle directly on each platform, or to search for it in the platform's own app, since only the platform itself has up-to-date data on which handles are taken.
Where possible, use the exact same handle across every platform so people can find you consistently. If your first choice is taken on one platform, the alternative suggestions here (adding a word like "official" or "hq", or a short suffix) are common patterns that tend to stay readable rather than turning into a string of random numbers.
Username Availability Checker is built for creators, social media managers, small business owners and marketers who need a quick, reliable way to handle one specific job: validate a handle's format and generate safe variations for every platform's rules. Instead of digging through a bloated all-in-one dashboard or installing a browser extension, you get a single focused page that does exactly this one thing well, works the same way on desktop and mobile, and keeps your inputs on your own device rather than sending them anywhere else. If this is a task you find yourself repeating every week, bookmark this page so it's one click away next time you need it.
Whatever this tool hands you — text, an image, a calculated number, or a piece of code — treat it as a strong first draft rather than a final answer. Skim the result against the specific post, account or campaign you're working on, adjust anything that doesn't quite match your usual voice or brand, and only then copy it into the platform you're actually posting to. Because everything here runs locally in your browser, you can safely try several combinations of inputs back to back without worrying about rate limits, accounts, or data being logged anywhere — refresh the page any time to start over with a clean slate.
No. It only checks that your username follows each platform's format rules (length and allowed characters). You'll need to search or try registering it on the platform itself to confirm real availability.
Each platform has different length limits and allowed characters — for example, X requires at least 4 characters and disallows periods, while Instagram allows periods and is more permissive on length.
No, they follow the same format rules as your original input but are not checked against any platform's live data.
Checking live availability would require sending your search to those platforms' servers, which conflicts with this site's rule that nothing you type is sent off your device.