Compare software

Holehe vs Sherlock: catalog facts
Holehe	Sherlock
Free The open-source tool is available without a license fee.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Covers a long list of services from one command Useful for auditing where your own address is registered	Covers hundreds of sites from a single command Useful defensively for checking your own username exposure
Site behaviour changes often, so results drift out of date Querying other people's addresses raises ethical and legal questions	False positives occur where sites return soft errors Profiling other people without cause raises obvious ethical and legal issues
Downloadable app	Downloadable app
Open source	Open source
License not stated	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.