Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.


OSINT-tool is described as 'OSINT tool is a browser extension and web application built for researchers, investigators, journalists and intelligence analysts. Our extension gives you access to a suite of OSINT utilities directly on any webpage you visit' and is an app in the web browsers category. There are more than 25 alternatives to OSINT-tool for a variety of platforms, including Linux, Windows, Web-based, Mac and Self-Hosted apps. The best OSINT-tool alternative is Web Check, which is both free and Open Source. Other great apps like OSINT-tool are Blackbird OSINT, SpiderFoot, Maltego and Sherlock.
Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.


Combines username and email searches on over 600 platforms with AI-powered analysis, metadata extraction, WhatsMyName integration, customizable filters, PDF/CSV/HTTP exports, and a dedicated CLI for streamlined OSINT, social media research, compliance, and data collection.



Automates open source intelligence by collecting, analyzing, and correlating data from diverse sources, offering web and command-line interfaces, modular plugins, detailed reports, data export, platform flexibility, and support for advanced integrations.

Facilitates open-source intelligence and forensics through visual link analysis, linking people, domains, IPs, and more. Supports data mining, mapping, collaborative investigations, report exporting, and use by cybersecurity analysts, law enforcement, and researchers.



Command line tool that checks usernames across hundreds of social media platforms, outputs results as text, CSV, or JSON, is cross-platform and open source, lightweight, privacy-respecting, supports bulk searches, aids security audits, and digital investigations.


urlscan.io is a free service to scan and analyse websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates.




Conducts comprehensive OSINT on phone numbers by identifying origin, carrier, line type, reputation, disposable status, and social media links, using API support, search engines, and a browser interface. Enables security research and threat assessment through advanced automation.

Collects emails, names, subdomains, IPs, and URLs from multiple public sources using various search engines and repositories for open source intelligence gathering, supporting initial penetration test phases, report outputs, and customizable search options.

Prying Deep crawls dark/clear net platforms and extracts as much intelligence as possible effectively.



sn0int is a semi-automatic OSINT framework and package manager. It was built for IT security professionals and bug hunters to gather intelligence about a given target or about yourself. sn0int is enumerating attack surface by semi-automatically processing public information and...

Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.


