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theHarvesterRecon-ng
Free

The open-source software is available without a license fee. Hosting, hardware and…

 Free

Free and open source under the GPL.

Windows, macOS, Linux, Command line macOS, Linux, Command line
  • Combines several public-data sources into structured results.
  • Workspace database means results from many modules accumulate and correlate
  • Familiar interface for anyone who has used Metasploit
  • Some sources need API credentials and may return incomplete data.
  • Many modules need API keys from third-party services
  • Reconnaissance against organisations you are not engaged by can be unlawful
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: GPL-3.0
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

Checked September 22, 2026

Checked September 22, 2026

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