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SpiderFoot vs Sherlock: catalog facts
SpiderFoot	Sherlock
Free Free and open source under the MIT licence. A hosted SpiderFoot HX service is paid.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Self-hosted	Windows, macOS, Linux, Command line
Two hundred modules run automatically and correlate their findings Web interface with graphing, plus a command-line mode for automation	Covers hundreds of sites from a single command Useful defensively for checking your own username exposure
Full coverage needs API keys for many third-party services Scanning organisations without authorisation can be unlawful	False positives occur where sites return soft errors Profiling other people without cause raises obvious ethical and legal issues
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.