Open source alternatives to NodeZero by Horizon3.ai

2 free, self-hostable tools you can use instead of NodeZero by Horizon3.ai, sorted by GitHub stars.

Alternatives to NodeZero by Horizon3.ai 2

pentagi

Replaces NodeZero by Horizon3.ai

Automate penetration testing with a multi-agent AI system that handles reconnaissance, planning, and exploitation using 20-plus built-in tools in Docker.

★ 31,300 MIT Security & Monitoring

Claude-Red

Replaces NodeZero by Horizon3.ai

Build a specialized offensive-security operator inside Claude with 78 structured SKILL.md files spanning web, AD, wireless, and exploit development.

★ 7,600 MIT Security & Monitoring