Enter your desired handle
Type the username into the search box. Keep it simple and avoid spaces, hyphens, or unusual characters if you want the best chance of matching across many platforms.
Username availability guide
What is a username checker?
A username checker is a free tool that searches social media platforms, websites, and domains to show whether a handle is available, taken, or invalid.
NameCheckup replaces the slow manual process of opening every platform in a new tab and checking signup forms one by one. Enter a handle once to check availability across networks and domain extensions, then compare the results side by side before you launch a brand, creator profile, startup, or campaign.
How to check username availability across all platforms
Use the checker at the top of this page before you publish a new identity anywhere. Availability changes quickly, so claim the strongest handles immediately after you verify them.
Review the results
Green means the handle appears available, red means it is already registered, and grey means the handle does not fit that platform's rules.
Claim what is available
Create the accounts or register the domains you care about first. Even if you do not plan to post yet, reserving a matching handle protects your name.
Why username consistency matters for your brand
A consistent username makes discovery easier. When someone hears about you on TikTok, searches for you on Instagram, mentions you on X, or checks your domain, the same handle should resolve without guesswork.
That consistency matters for creators, freelancers, startups, and established businesses. It reduces confusion, makes profile links easier to remember, and helps prevent impersonation on platforms you are not actively using yet.
Common use cases
- Creators securing one handle before posting publicly.
- Startups checking a brand name before buying domains.
- Freelancers aligning portfolio, social, and marketplace profiles.
- Teams finding impersonation risks across public platforms.
Username rules by platform
Character rules vary by network. If you want one handle everywhere, choose a short name that works inside the strictest limits.
| Platform | Length | Allowed characters | Best practice |
|---|---|---|---|
| 1-30 | Letters, numbers, periods, underscores | Avoid repeated punctuation for brand handles. | |
| TikTok | 2-24 | Letters, numbers, periods, underscores | Keep it easy to say aloud in videos. |
| X | 4-15 | Letters, numbers, underscores | Use this as your cross-platform limit. |
| YouTube | 3-30 | Letters, numbers, underscores, hyphens | Handles cannot include periods. |
| GitHub | 1-39 | Letters, numbers, single hyphens | Avoid leading, trailing, or repeated hyphens. |
| 3-20 | Letters, numbers, underscores, hyphens | Choose carefully; Reddit usernames cannot be changed. |
Finding usernames across platforms
Username checkers can also be used in reverse: instead of looking for an available handle, you can see where a known username already exists. This is useful for legitimate open-source research, identity verification, recruiting, journalism, fraud review, and brand monitoring.
NameCheckup checks publicly visible profile signals only. It does not access private accounts, log into platforms, scrape content behind authentication, or store search history.
What to do if your username is taken
Start with meaningful variations. Add a short brand suffix such as studio, hq, app, or official; use a permitted underscore or period; shorten the phrase; or choose a related word that still fits your identity.
Avoid long number strings unless they are part of the brand. They are harder to remember and often make a public profile look temporary.
Frequently asked questions
Short answers to the questions people ask before choosing a username, handle, or domain name.
What is a username checker?
A username checker is a free online tool that searches dozens of social media platforms, websites, and domain registrars at once to tell you whether a specific handle is available or already taken. Instead of opening Instagram, TikTok, YouTube, X, and a domain registrar separately, you type the username once and see every result side by side in seconds.
How do I check if a username is available on all social media?
Enter your desired username into a multi-platform checker like NameCheckup. The tool queries each platform's public profile endpoint in real time and marks each result as available, taken, or invalid when the handle breaks that platform's character rules. Always confirm the final result on the platform itself before launching a brand.
Is NameCheckup free?
Yes. NameCheckup is free to use, requires no account, and does not collect personal data when you search. You can run checks across social networks and major domain extensions in a single query.
Which platforms does NameCheckup check?
NameCheckup checks major social networks including Instagram, TikTok, X, YouTube, Facebook, LinkedIn, Pinterest, Reddit, Twitch, Snapchat, Threads, Bluesky, GitHub, and many more, plus major domain extensions such as .com, .net, .io, and .co. Results are pulled from public platform signals where available.
Why does my username need to be the same on every platform?
A consistent handle makes it easier for customers, fans, journalists, and collaborators to find the right account wherever they search. It also reduces confusion, helps mentions resolve correctly, and lowers the chance that someone else can impersonate your brand on a platform you have not claimed yet.
What should I do if my username is already taken?
Try strategic variations rather than random numbers: add a meaningful prefix or suffix such as official, hq, or studio; use a period or underscore on platforms that allow them; shorten the phrase; or choose a related word that still reflects your brand. Avoid generic number strings when the account will represent a public identity.
Can I use a username checker to find someone's social media accounts?
Yes. The same lookup that confirms a username is unavailable also confirms when an account exists on a platform. This is a legitimate open-source research technique used for identity verification, recruiting, journalism, and brand monitoring. NameCheckup only checks publicly accessible profile signals and does not access private accounts.
How accurate are username availability results?
Results are highly accurate for platforms with public profile endpoints, but false positives or negatives can occur when a platform reserves usernames internally, an account was recently deleted, rate limits are active, or cached data is stale. Always re-confirm a critical handle on the destination platform before registering it.
What is the difference between a username, a handle, and a display name?
Your username or handle is the unique identifier in your profile URL and after the @ symbol. Only one account can use it on a platform. Your display name is the formatted name shown on your profile and can usually be changed freely. Username checkers verify handle availability, not display names.
What are the username character limits on each platform?
Instagram allows 1 to 30 characters with letters, numbers, periods, and underscores. TikTok allows 2 to 24 characters. X allows 4 to 15 characters using letters, numbers, and underscores. YouTube handles allow 3 to 30 characters but no periods. For maximum portability, aim for 4 to 15 lowercase letters or numbers.
