Tools directory
OSINT Username Search Tools: The Best Free Options in 2026
OSINT stands for open-source intelligence. In practice, for most people who land on this page, it means one thing: finding where a username exists online without spending hours doing it manually.
This page covers the tools that actually work in 2026, what each one is genuinely good at, and where each one falls short. No padding, no affiliate rankings.
Tools on This Site
WhatsMyName App
FeaturedWhatsMyName App is the primary tool on this site. It checks 732+ platforms simultaneously and returns results in real time with direct links to every found profile. No install, no account, runs in any browser.
It is built on the WhatsMyName open-source JSON dataset created by Micah Hoffman, which is the most widely used detection substrate in the username search tool ecosystem. The dataset is community-maintained and updated regularly.
Best for: Fast lookups from any device with no technical setup required.
More tools will be added to this directory as the site grows.
External OSINT Username Search Tools
These tools are not hosted on this site but are widely used in the OSINT community. Each one is described accurately based on its actual capabilities.
Sherlock
View →Sherlock is a Python command-line tool that checks approximately 479 platforms. It is the most widely installed username search tool in the OSINT community and is available through pip, Docker, Homebrew, and most Linux package managers.
It accepts multiple usernames in one run, supports Tor and proxy configurations, and exports to CSV, plain text, or XLSX. It integrates cleanly into scripts and automated workflows.
Best for: Terminal users, scripted workflows, batch username processing.
Install: pip3 install sherlock-project or via Docker.
GitHub: github.com/sherlock-project/sherlock
Maigret
View →Maigret is the most powerful username search tool available as of 2026. Version 0.5.0, released August 2025, expanded coverage to 3,100+ sites and introduced recursive identity mapping. When Maigret finds an account, it can extract links from that profile and automatically search for connected usernames, building a network of linked identities rather than a flat list.
It also parses profile data including bios and linked accounts, and generates evidence-grade reports in HTML, PDF, XMind, and Markdown formats. It has the lowest false positive rate of any tool in this category.
Maigret is a fork of Sherlock and has grown significantly beyond it in both scope and sophistication.
Best for: Deep investigations, identity network mapping, professional evidence reports.
Install: pip3 install maigret
GitHub: github.com/soxoj/maigret
Blackbird
View →Blackbird is a username search tool that uses the WhatsMyName dataset as its data source, which means it covers the same set of platforms as WhatsMyName App but with a different interface and output format. It runs as a Python script and produces results in JSON and HTML formats.
It is a good option for investigators who want the WhatsMyName dataset coverage but prefer a local command-line tool over the web interface.
Best for: Investigators who want WhatsMyName dataset coverage in a local CLI format.
Install: Via GitHub at github.com/p1ngul1n0/blackbird
Trace
Trace is a real-time OSINT platform that searches usernames, emails, phone numbers, and full names across 600+ platforms. It includes breach detection and AI risk scoring, which makes it more of an investigative platform than a simple username checker.
It runs as a web application and does not require installation.
Best for: Investigators who want username search combined with breach data and risk scoring.
Social Analyzer
View →Social Analyzer is an API, CLI, and web application that analyzes and finds profiles across 1,000+ social media platforms and websites. It goes beyond simple username checking to include profile analysis and can be integrated into larger OSINT workflows via its API.
Best for: Investigators who need API access or want to integrate username search into a larger workflow.
GitHub: github.com/qeeqbox/social-analyzer
How to Choose the Right Tool
The right tool depends entirely on your situation. Here is a direct guide:
You need results in under 2 minutes with no setup:
Use WhatsMyName App. Open the browser, enter the username, done.
You are running searches from a terminal or a script:
Use Sherlock. It installs in one command and integrates cleanly with other tools.
You are doing a serious investigation and need maximum coverage:
Use Maigret. It covers 3,100+ sites, maps linked identities, and produces professional reports.
You want username search combined with breach data:
Use Trace.
You want the WhatsMyName dataset but prefer a local tool:
Use Blackbird.
Most experienced OSINT investigators use multiple tools depending on the task. WhatsMyName App for a fast initial scan. Maigret for deep follow-up. Sherlock for batch processing.
What None of These Tools Can Do
Worth being clear about what username search tools cannot do, regardless of which one you use:
- They cannot access private accounts or profiles behind authentication
- They cannot retrieve deleted accounts
- They cannot confirm that two accounts with the same username belong to the same person
- They cannot access data behind paywalls or closed networks
- They are not a replacement for manual verification of individual results
Every tool in this category has false positives to some degree. Always verify results that matter to your investigation by clicking through to the live profile before drawing conclusions.
A Note on Legality and Ethics
All tools listed on this page check publicly accessible information only. Looking up whether a username exists on a public platform is legal in most jurisdictions. It is equivalent to typing a URL into your browser.
What you do with the results is a separate question. Gathering information about someone with the intent to stalk, harass, or harm them is illegal regardless of which tool you used. Use these tools for legitimate research, security work, journalism, or personal auditing of your own digital footprint.
For a full breakdown of the legal and privacy considerations around username search, read is WhatsMyName App safe to use.
Frequently Asked Questions
What is the best free OSINT username search tool in 2026?
For most users, WhatsMyName App is the best starting point. It requires no install, covers 732+ platforms, and returns results in real time. For professional investigators who need maximum coverage and recursive identity mapping, Maigret is more powerful but requires Python.
How many platforms can these tools search?
WhatsMyName App covers 732+. Sherlock covers 479. Maigret covers 3,100+. Blackbird uses the WhatsMyName dataset (732+). Trace covers 600+. Social Analyzer covers 1,000+.
Can I use multiple tools together?
Yes, and many investigators do. A common workflow is WhatsMyName App for a fast initial scan, then Maigret for a deep follow-up on usernames of interest.
Are these tools legal to use?
Yes, in most jurisdictions. They check publicly accessible information only. What you do with the results determines legality, not the tool itself.
Do these tools work on mobile?
WhatsMyName App and Trace work in any mobile browser with no install. Sherlock, Maigret, Blackbird, and Social Analyzer require a desktop or server environment with Python or another runtime.
What is the difference between WhatsMyName App and Sherlock?
WhatsMyName App runs in a browser with no setup and covers 732+ sites. Sherlock is a Python CLI tool covering 479 sites, suited for terminal users and automated workflows. Read the full comparison for a detailed breakdown.
Ready to start? Try WhatsMyName App directly from this site. Free, no sign-up, results in under 90 seconds.