Compare software

Recon-ng vs Holehe: catalog facts
Recon-ng	Holehe
Free Free and open source under the GPL.	Free The open-source tool is available without a license fee.
macOS, Linux, Command line	Windows, macOS, Linux, Command line
Workspace database means results from many modules accumulate and correlate Familiar interface for anyone who has used Metasploit	Covers a long list of services from one command Useful for auditing where your own address is registered
Many modules need API keys from third-party services Reconnaissance against organisations you are not engaged by can be unlawful	Site behaviour changes often, so results drift out of date Querying other people's addresses raises ethical and legal questions
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
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.