Username search across 3,450+ sites

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). It works as a free username lookup, a username finder and a social media username search: type a handle and it finds public profiles by username. It also works as a nickname lookup or nickname search engine, as long as the nickname is the handle someone actually uses online. 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

1. 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.
2. Optional: pick categories such as social, gaming or coding to narrow the scan.
3. Watch results stream in. About 16 checks run in parallel, so most of the scan finishes in under a minute.
4. 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.

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

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)