How Our Reverse Username Search Works

What is a reverse username search?

A reverse username search starts from a username (a handle like john.doe) and finds the accounts that use it on different websites. Because many people reuse one username across apps, the results can reveal someone's other public profiles. People use it to verify online dates, spot fake or impersonation accounts, reconnect with lost contacts, and check if a username is available for their brand.

How the check works, step by step

1. We clean the input. A pasted profile link becomes its username, a leading @ is removed, and for an email address we keep the part before the @.
2. We check each site's rules. If the username isn't allowed on a site (for example, longer than X's 15-character limit), that site is marked Not found without sending any request.
3. We request the public profile page. For each site we open the address where its public profiles live, like tiktok.com/@username, or a lighter public endpoint when one exists.
4. We read the answer. A "page not found" response, a redirect to the home page, or a "this account doesn't exist" message means Not found. A real profile page means Found. A login page or a blocked request means we can't confirm it.
5. We show results 10 sites at a time. The most-searched platforms come first. You can scan the next 10 or all remaining sites.

What each result means

• Found: a public profile with this exact username exists. It may belong to a different person than the one you're looking for.
• Not found: the site says no account uses this username, or the username isn't valid on that site.
• Can't verify: the site hides profiles from logged-out visitors (common on Instagram, Facebook and X) or blocked our check. We give you the link to check it yourself.
• Unable to verify: the app has no public profile pages at all (Bumble, Hinge, POF, OkCupid, Grindr, Happn, Zoosk, Match), so no website can confirm the account by username. The account may still exist.

Limits you should know

• The same username on two sites doesn't prove it's the same person. Always compare photos, names and other details.
• Sites change how their pages work. We test every site regularly with real and made-up usernames, and turn off any site that starts giving wrong answers.
• Private, deleted, banned or recently renamed accounts can show as Not found.
• The free tool never shows private data like phone numbers, emails or addresses.

Privacy: what we store

We don't need an account and we don't save the usernames you search in a database. To speed up repeat searches, results are kept in temporary server memory for about 15 minutes and then discarded. We don't contact, follow or notify the accounts we check. Read our privacy policy for details.

All 192 sites we check

Social media (32)

Instagram (login needed), Facebook (login needed), TikTok, Snapchat, X (Twitter) (login needed), Pinterest, Threads (login needed), OnlyFans (login needed), Linktree, Tumblr, Bluesky, VK, Gravatar, About.me, Foursquare, Flipboard, Mastodon, We Heart It, Beacons, Bio.link, Taplink, Carrd, OK.ru, Weibo (login needed), Myspace, Gab, Truth Social, GETTR, Minds, VERO, Clubhouse, Plurk

Dating (14)

Tinder, Badoo (login needed), MeetMe (login needed), Bumble (no public profiles), Hinge (no public profiles), Plenty of Fish (POF) (no public profiles), OkCupid (no public profiles), Grindr (no public profiles), Happn (no public profiles), Zoosk (no public profiles), Match (no public profiles), Tagged (login needed), Mamba (login needed), FetLife (login needed)

Video & streaming (10)

YouTube, Twitch (login needed), Dailymotion, Crunchyroll, Vimeo, Trakt, Kick, Rumble, Odysee, Likee

Messaging (4)

Telegram, Kik, Discord (server invite), Slack

Music & audio (10)

Bandcamp, House-Mixes, Mixcloud, ReverbNation, SoundCloud, Spotify (login needed), Last.fm, Audiomack, Genius, Smule

Gaming (14)

itch.io, Newgrounds, Steam Group, Star Citizen, Steam, Roblox, Chess.com, Lichess, Minecraft, Xbox Gamertag, Speedrun.com, osu!, Game Jolt, Kongregate

Developer & tech (29)

GitHub, Hacker News, Product Hunt, Wellfound (AngelList), Aptoide, Bitbucket, CodePen, Codementor, GitLab, Gitee, DEV Community, IFTTT, HackerOne, Keybase, Kaggle, Replit, SourceForge, VirusTotal, devRant, npm, PyPI, Docker Hub, LeetCode, HackerRank, Codeforces, Hashnode, Hugging Face, Launchpad, Trello

Art, photos & writing (27)

Patreon, 500px, Behance, Crevado, Flickr, Carbonmade, GIPHY, Contently, Creative Market, Coroflot, DeviantArt, Dribbble, COLOURlovers, Imgur, Pixabay, Unsplash, VSCO, Imgsrc.ru, YouPic, Ko-fi, Buy Me a Coffee, ArtStation, Wattpad, Archive of Our Own, Canva, Sketchfab, Pexels

Forums & communities (22)

Reddit, Quora, Disqus, 9GAG, Goodreads, Bitcoin Forum, ASKfm, Houzz, Instructables, Investing.com, Letterboxd, TradingView, Tripadvisor (login needed), Fandom, Wikipedia, Zhihu (login needed), Lemmy, Slashdot, XDA Forums, MyAnimeList, AniList, Couchsurfing (login needed)

Shopping & freelance (11)

eBay, Etsy, Gumroad, Poshmark, Depop, Mercari, Fiverr, Freelancer, Redbubble, TeePublic, Society6

Payments (2)

Cash App, Venmo (login needed)

Blogs & websites (10)

Medium, Blogger, BuzzFeed, Issuu, HubPages, LiveJournal, Webnode, WordPress.com, Wix, Substack

Learning (6)

Academia.edu, Codecademy, SlideShare, Duolingo, Scribd, Khan Academy

Other (1)

Calendly

Frequently asked questions

Is Reverse Username Search free?

Yes. The username search on all 192 sites is free and needs no signup.

How many sites does the username search check?

192 sites: 184 that can be checked directly, plus 8 dating apps without public profiles that are listed as Unable to verify.

Does the person know I searched their username?

No. The tool only checks whether public pages exist. It doesn't log in, follow, message or notify anyone.