Open source bug-bounty projects
Every project in the registry tagged bug-bounty, ranked by real GitHub adoption.
Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.
reNgine is an automated reconnaissance framework for web applications with a focus on highly configurable streamlined recon process via Engines, recon data corr
reconFTW is a tool designed to perform automated recon on a target domain by running the best set of tools to perform scanning and finding out vulnerabilities
AI-powered bug bounty hunting toolkit that works with or without subscription.
Applied offensive security with Rust - https://kerkour.com/black-hat-rust
A Security Tool for Bug Bounty, Pentest and Red Teaming.
Open-source AI-powered offensive security harness for automated penetration testing.
Open-source, self-hosted AI penetration testing framework: maps your attack surface into a graph, autonomously exploits it from a Kali sandbox with human approv
Autonomous penetration testing using a swarm of AI agents. Orchestrates recon, classification, exploitation, and reporting specialists with ReAct reasoning — su
Semi-automatic OSINT framework and package manager
Open-source, self-hosted AI vulnerability research tool that orchestrates agents to find and validate security issues in code.
Turn Claude Code into your offensive security research assistant. Specialized AI subagents for authorized penetration testing plan engagements, analyze recon, r
403/401 bypass tool: finds HTTP access-control bypasses via path, method, header and raw-request mutations. Baseline diff, auto-calibration, replayable curl evi
Open-source AI pentester that proves every finding. Machine oracles re-run each exploit; verified bugs ship a proof capsule you can replay yourself.
Obtain GraphQL API schema even if the introspection is disabled
Autonomous AI pentesting agents — real-time reconnaissance, vulnerability detection, and exploitation orchestration. Go + TypeScript.
Reconmap is a collaboration-first security operations platform for infosec teams and MSSPs, enabling end‑to‑end engagement management, from reconnaissance throu
Fast, red-teaming browser built for AI agents, with direct HTTP traffic control, sandboxed execution, and auditable sessions. Pure Rust.
A free, open-source alternative to Burp Suite: an intercepting proxy and web app security testing suite with Repeater, Intruder, Collaborator and a built-in OWA
Passive API key and secret discovery browser extension for Chrome and Firefox. 80+ detection patterns, zero config.
Related tags
Frequently asked questions
How many open source bug-bounty projects are there?
This registry tracks 20 projects tagged bug-bounty, with 132,108 GitHub stars between them. The most-adopted is strix at 73,376 stars.
Are these bug-bounty projects free to use?
Yes — 20 of the 20 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which bug-bounty project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these bug-bounty projects still maintained?
18 of the 20 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.