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OpenDoor vs Recon-ng: catalog facts
OpenDoor	Recon-ng
Best for: Security testers assessing web assets they own or have permission to test	Best for: Modular web reconnaissance framework with a Metasploit-style interface
Free Free and open source under GPL-3.0.	Free Free and open source under the GPL.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Combines directory discovery, subdomain enumeration, and bounded crawling Includes response filtering and reporting workflows All 3 strengths for OpenDoor Combines directory discovery, subdomain enumeration, and bounded crawling Includes response filtering and reporting workflows Supports Linux, macOS, and Windows	Workspace database means results from many modules accumulate and correlate Familiar interface for anyone who has used Metasploit
Intended for authorized testing	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-3.0-only	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
Official website Full listing and sources Sources for OpenDoor github.com/stanislav-web/OpenDoor Catalog checked October 8, 2026	Official website Full listing and sources Sources for Recon-ng github.com/lanmaster53/recon-ng Catalog checked September 22, 2026

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