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Sherlock vs SpiderFoot: catalog facts
Sherlock	SpiderFoot
Best for: Finds accounts with a given username across hundreds of sites	Best for: Automated open-source intelligence collection with 200 modules
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence. A hosted SpiderFoot HX service is paid.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Self-hosted
Covers hundreds of sites from a single command Useful defensively for checking your own username exposure	Two hundred modules run automatically and correlate their findings Web interface with graphing, plus a command-line mode for automation
False positives occur where sites return soft errors Profiling other people without cause raises obvious ethical and legal issues	Full coverage needs API keys for many third-party services Scanning organisations without authorisation can be unlawful
Downloadable app	Downloadable app, Self-hosted
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 Sources for Sherlock sherlockproject.xyz github.com/sherlock-project/sherlock Catalog checked September 22, 2026	Official website Full listing and sources Sources for SpiderFoot github.com/smicallef/spiderfoot Catalog checked September 22, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.