Username search across 3,450+ sites
Search usernames on 
TikTok
Instagram
Roblox+60 more
Twitch
Discord
Steam+60 moreTikTok
Free, right here in your browser.
3,450+ sites. One search.
See all supported sites- X
- TikTok
- YouTube
- Snapchat
- Threads
- Bluesky
- Twitch
- Discord
- GitHub
- Spotify
- Medium
- Patreon
- SoundCloud
- Telegram
- Steam
- Tumblr
- Substack
- Etsy
- Vimeo
- Flickr
- Behance
- Dribbble
- DeviantArt
- Chess.com
- Duolingo
- GitLab
- Kaggle
- LeetCode
- Letterboxd
- Last.fm
- Linktree
- Ko-fi
- Keybase
- Hacker News
- Quora
- Imgur
- itch.io
- Bandcamp
- npm
- Wattpad
- Roblox
- Venmo
How it works
- 1You type a username, or paste a profile link.
- 2Our server asks each site for that profile address, 16 batches at a time.
- 3Results land as they come in: found, not found, blocked or unknown.
Private by default
The username is used only to run the check. We don't store it or log it.
Use it responsibly
Results are leads to verify, not facts about a person. Look up only usernames you have a legitimate reason to research.
3,450+
sites in one search, with results in seconds
Our own engine
Every site is checked with detection rules we write and test ourselves.
10 languages
- English
- العربية
- Español
- Français
- Deutsch
- Português
- हिन्दी
- Bahasa Indonesia
- Türkçe
- Русский
What this username search engine does
WhatsMyName Apps checks one username against 3,450+ public websites at the same time and shows you, live, where a profile with that exact name exists. It covers social networks, coding sites, gaming platforms, music and video services, forums, shopping sites and more (see all supported sites). Type a handle, or a nickname someone actually uses online, and it finds the public profiles that use it. People use it in two ways:
- Find accounts by username. Look up one handle to find other accounts with that username. Audit your own digital footprint, find old accounts you forgot about, or, for legitimate research, see where a username appears in public. Our digital footprint check and OSINT username search guides show how to do this well.
- Check if a username is available. Before you launch a brand, channel or gamer tag, see where the name is already taken and where it is still free, plus whether the matching .com, .net, .org, .io, .us, .app and .dev domains are open. The name checker puts both side by side.
It is free, needs no account, and works in any modern browser on desktop or phone.
In our October 2026 test of 60 usernames across 3,166 sites, a random made-up handle already existed on about 7 sites on average, while common names like johndoe existed on 866. See the study.
How to search by username in 4 steps
- Type a username in the box above, or paste a profile link and we pull the username out of it. You can search usernames in batches of up to 5, separated by commas.
- Optional: pick categories such as social, gaming or coding to narrow the scan.
- Watch results stream in. About 16 checks run in parallel, so most of the scan finishes in under a minute.
- Review, filter and export. Switch between grid, list and table views, filter by status, open any profile, then export everything to JSON or CSV or copy all found links.
The step-by-step guide has screenshots of every option.
What the results mean
Every site gets one of four statuses. Most checkers show only “taken” or “available”, which hides the cases where the check itself failed.
| Status | What it means | What to do |
|---|---|---|
| Found | A public profile page exists at that site’s address for this username. | Open it and confirm it is the account you expect. |
| Not found | The site reported no profile with that name. | The name is probably free there; confirm on the site’s sign-up page. |
| Blocked | The site refused our automated check (rate limits, bot protection or a login wall). | Unknown either way. Retry later or check by hand. |
| Unknown | The response was ambiguous or timed out. | Press Retry failed, or check that site directly. |
For found profiles we also show the public display name, avatar and bio when the site provides them, so you can compare accounts without opening each one. That is what we mean by a deep username search. Starting from a handle and asking where else it is used is a reverse username lookup. An email checker is coming soon. How it works lists what our server requests and why a result can be wrong.
Treat a match as a lead
The same username on two sites does not mean the same person owns both accounts. Short and common names are claimed by many unrelated people. A “found” result tells you where to look. Verify it with independent signals such as a matching photo, a linked website or a consistent join date. Only look up usernames you have a legitimate reason to research: your own, your brand’s, or ones that are part of authorized work. Read our responsible-use guidelines.
Sites and categories covered
The search runs on our own engine. We choose each site, write its detection rule and keep it up to date ourselves. The list covers social and community sites, coding and tech sites, gaming platforms, and more across video, music, art, finance, shopping and blogging. Popular U.S. platforms are included, among them Instagram, TikTok, X, YouTube, Reddit, Twitch, GitHub, Snapchat, Pinterest, Steam, Roblox and Spotify. Browse the full list by category or jump to a single-platform checker.
WhatsMyName Apps is an independent tool. It is not affiliated with or endorsed by the WhatsMyName project, Sherlock, Maigret or any site it checks.
Frequently asked questions
Is there a free social media username search?
Yes, this one. It searches social media and 3,450+ other sites for a username in one go, for free and without an account. Think of it as a social media search that only takes usernames: it won't match real names, photos or phone numbers. Results are public profile pages only.
What is a deep username search?
It is a username profile search that goes beyond "taken or free". For every account found, we also fetch the public display name, avatar, bio and, where available, follower count and join date, so you can judge whether accounts belong together.
Can I do a user ID lookup or user ID search?
You can do a user lookup by the public username (handle) that appears in profile links. Numeric account IDs differ on every site and are not supported, so a user ID search by number will not work here. A few platform checker pages explain where a site shows its numeric ID, such as Steam's 17-digit SteamID64. To search for a username, type it above or paste a profile link and we pull the handle out of it.
Is this deep username search free?
Yes. The full scan, profile details included, is free with no sign-up, no paywall and no limit on how many results you see. A per-minute rate limit protects the service from abuse.
Can I find a user without knowing their exact username?
Not reliably. Each check looks for the exact handle you type, so try the variants people tend to use: with and without underscores, dots or numbers, and old nicknames. You can search up to 5 variants at once. A display name or real name is not a username and will not match.
Do you store the usernames I search?
No. Your browser sends the username to our server only to run the check; we do not store or log it. Recent searches stay in your own browser, and you can clear them anytime. Details are in our privacy policy.
Can I check if a username is available on Instagram or TikTok?
Yes, both are in the scan. Large platforms sometimes block automated checks, so you may see "Blocked" instead of "Not found." In that case, confirm on the platform itself before you rely on the result.
Why does a site show "Found" when I don't have an account there?
Someone else may use the same name, or the site may return a page for any name. Open the link to check, and use "Report wrong result" so we can fix the site's rule.
How is this different from Namechk, KnowEm or Sherlock?
Namechk and KnowEm focus on availability across around 100–500 sites. Sherlock is a command-line tool for about 400 sites. We check 3,450+ sites in the browser, show four statuses so a failed check is not reported as "available", and add profile details and export.
Can I find who is behind a username?
No. This tool only shows where a public profile with that name exists. It does not reveal identities, emails, phone numbers or private data.
Need a new username? Generate one
Get ideas that fit the rules of Instagram, TikTok, Roblox, Discord and more, then check any of them in one click. Runs in your browser. Open the full username generator.
Username search guides
- Guide: reading your results
- How the search works
- Supported sites
- Use cases
- We Checked 60 Usernames Across 3,166 Sites: Here's What We Found
- What Is My Username? How to Find a Username You Forgot
- Best Username Search Engines in 2026 (Free and Paid Compared)
- Social Media Search & Finder by Name or Username
- How to Check if a Username Is Taken on Every Site (Step by Step)