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.
United Kingdom
SpiderFoot Alternatives
SpiderFoot is described as 'Automates open source intelligence collection with support for multiple data sources, web interface, command-line use, reporting, and modular plugins' and is an app in the security & privacy category. There are more than 25 alternatives to SpiderFoot for a variety of platforms, including Linux, Web-based, Windows, Mac and Self-Hosted apps. The best SpiderFoot alternative is Web Check, which is both free and Open Source. Other great apps like SpiderFoot are Blackbird OSINT, Maltego, ANY.RUN and Sherlock.
Alternatives list
14 Web Check alternatives
16 Blackbird OSINT alternativesCombines 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.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Mac
- Windows
- Linux
- Python
23 Maltego alternativesFacilitates 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.
Cost / License
- Freemium
- Proprietary
Platforms
- Mac
- Windows
- Linux
36 ANY.RUN alternativesANY.RUN is interactive sandbox simplifies malware analysis of threats that target both Windows and Linux systems. ANY.RUN's threat intelligence products, TI Lookup, Yara Search and Feeds, help you find IOCs or files to learn more about the threats and respond to incidents faster.
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27 Sherlock alternativesCommand 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.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux
Who is peeking over your shoulder while you work, watch videos, learn, explore, and shop on the internet? Enter the address of any website, and Blacklight will scan it and reveal the specific user-tracking technologies on the site—and who’s getting your data.
73 urlscan.io alternativesurlscan.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.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Google Chrome
- Mozilla Firefox
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25 OSINT-tool alternativesOSINT 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.
Cost / License
- Paid
- Proprietary
Platforms
- Google Chrome
- Online
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20 PhoneInfoga alternativesConducts 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.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Mac
- Windows
- Linux
10 theHarvester alternativesCollects 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.
Cost / License
- Free
- Open Source (GPL-2.0)
Platforms
- Linux
- Online
- Self-Hosted
- Kali Linux
Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.
11 Noimosiny alternativesAn OSINT investigation platform with 100+ modules for reverse email, phone number, and username lookups, plus a free interactive graph to visualize and explore connections.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
Brazil
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