Deep username search, free: one handle, thousands of sites
Free, no sign-up. The username is used only to run the check and is not stored or logged.
Most free username search tools check a few hundred popular sites. A deep search goes further: forums, gaming networks, dating sites, developer platforms and small communities where old accounts hide.
Deep username search tools compared
Site counts are what each tool says on its own website (checked November 2026). More sites is not always better, but it decides whether small and old accounts show up at all.
| Tool | Sites checked | Cost | How you use it |
|---|---|---|---|
| FreeUsername | 3,450+ | Free | Browser + Android app |
| Maigret | 3,000+ | Free, open source | Command line (install) |
| Revealer | 800+ | Free lookup | Browser |
| UserSearch.org | 600+ | Free | Browser |
| IntelBase | 620+ | Free trial | Browser |
| IdSnoop | 500+ | Free | Browser |
| Sherlock | 400+ | Free, open source | Command line (install) |
| WhatsMyName.io | Hundreds | Free | Browser |
| Instant Username Search | 100+ | Free | Browser |
| IDCrawl | Dozens of major networks | Partly free | Browser |
For more on each tool, see OSINT tools compared.
How a deep username search works
- One request per site. The search asks each of the 3,450+ sites for the profile page of your handle.
- Each answer is checked. A real profile, a "not found" page and a block page look different. Only real profiles count as found.
- Results stream in. Found profiles appear as they are confirmed, with direct links, and you can export them.
Verify every result by hand
Automated checks look for profile page patterns, so a common handle can match someone else. Open each link and compare the profile photo, bio, location and linked sites. Treat a match as a lead, not proof.
Search the variants too
People change handles slightly between sites: an added number, an underscore, a dot, or l33t letters. If the main handle finds little, search the obvious variants, old nicknames and the email address linked to it.
Use it responsibly
A username search maps a public footprint. Use it to check your own accounts, verify who you are talking to or research in line with the law. Don't use it to stalk or harass anyone, and don't use it for employment or tenant screening. More in our OSINT username search guide and dating site username search.
Frequently asked questions
Is this deep username search really free?
Yes. The full 3,450+-site search is free, with no account and no install. You can export results as CSV or JSON.
What makes a username search "deep"?
It comes down to how many sites it checks and how. A deep search checks thousands of sites, not just the big social networks, and confirms each hit with the site's own response instead of guessing from a URL. That includes forums, gaming, dating, developer and niche community sites.
What do people on Reddit recommend for a deep username search?
In r/OSINT threads the usual picks are command-line tools like Sherlock and Maigret, plus web tools that need no install. A browser tool like this one gives Maigret-level coverage without Python or a terminal.
Can it search dating sites?
Yes, dating and adult sites are among the categories checked. See our dating site username search guide for safe ways to use it.
Why does a profile show as found when it isn't the person?
Common handles are reused by different people. Always open the link and compare the photo, bio and linked sites before you treat a hit as the same person.
Related tools and guides
- Digital footprint checker
- Reverse username lookup
- OSINT username search
- Name checker (usernames and domains)
- Email checker
- Free username search on all 3,450+ sites · Platform username checkers · All 3,450+ supported sites
- How to read your results · How it works
FreeUsername is an independent tool, not affiliated with the WhatsMyName project, Sherlock, Maigret or any site it checks.