The OWASP Amass Project performs network mapping of attack surfaces and external asset discovery using open source information gathering and active reconnaissance techniques.

You can find additional installation instructions and documentation in the Amass Docs repo.

Corporate Supporters

We are always happy to get new contributors on board! Please check CONTRIBUTING.md to learn how to contribute to our codebase, and join our Discord Server to discuss current project goals.

If you need help with installation and/or usage of the tool, please join our Discord server where community members can best help you.

🛑 Please avoid opening GitHub issues for support requests or questions!

This program is free software: you can redistribute it and/or modify it under the terms of the Apache license. OWASP Amass and any contributions are Copyright © by Jeff Foley 2017-2025. Some subcomponents have separate licenses.