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theHarvesterOpenDoor
Free

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

 Free

Free and open source under GPL-3.0.

Windows, macOS, Linux, Command line Windows, macOS, Linux, Command line
  • Combines several public-data sources into structured results.
  • Combines directory discovery, subdomain enumeration, and bounded crawling
  • Includes response filtering and reporting workflows
  • Some sources need API credentials and may return incomplete data.
  • Intended for authorized testing
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: GPL-3.0-only
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 October 8, 2026

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