Open source bug-bounty projects

Every project in the registry tagged bug-bounty, ranked by real GitHub adoption.

projects 20 combined stars ★ 132K refresh nightly
01 strix ★ 73K

Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.

last push3 days ago languagePython licenseApache-2.0
02 rengine ★ 8.9K

reNgine is an automated reconnaissance framework for web applications with a focus on highly configurable streamlined recon process via Engines, recon data corr

last push2 days ago languageHTML licenseGPL-3.0
03 reconftw ★ 8.3K

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

last push16 hours ago languageShell licenseMIT
04 Agentic-Bug-Hunter ★ 5.5K

AI-powered bug bounty hunting toolkit that works with or without subscription.

last push6 days ago languagePython licenseMIT
05 black-hat-rust ★ 4.5K

Applied offensive security with Rust - https://kerkour.com/black-hat-rust

last push13 months ago languageRust licenseMIT
06 afrog ★ 4.5K

A Security Tool for Bug Bounty, Pentest and Red Teaming.

last push12 hours ago languageGo licenseMIT
07 CyberStrike ★ 3.4K

Open-source AI-powered offensive security harness for automated penetration testing.

last push8 hours ago languageTypeScript licenseAGPL-3.0
08 redamon ★ 3.3K

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

last push35 hours ago languagePython licenseMIT
09 Pentest-Swarm-AI ★ 3.1K

Autonomous penetration testing using a swarm of AI agents. Orchestrates recon, classification, exploitation, and reporting specialists with ReAct reasoning — su

last push11 hours ago languageGo licenseAGPL-3.0
10 sn0int ★ 2.6K

Semi-automatic OSINT framework and package manager

last push1 months ago languageRust licenseGPL-3.0
11 open-kritt ★ 2.4K

Open-source, self-hosted AI vulnerability research tool that orchestrates agents to find and validate security issues in code.

last push21 hours ago languageJavaScript licenseAGPL-3.0
12 pentest-ai-agents ★ 2.4K

Turn Claude Code into your offensive security research assistant. Specialized AI subagents for authorized penetration testing plan engagements, analyze recon, r

last push28 days ago languageShell licenseMIT
13 nomore403 ★ 1.9K

403/401 bypass tool: finds HTTP access-control bypasses via path, method, header and raw-request mutations. Baseline diff, auto-calibration, replayable curl evi

last push3 days ago languageGo licenseMIT
14 pentest-ai ★ 1.8K

Open-source AI pentester that proves every finding. Machine oracles re-run each exploit; verified bugs ship a proof capsule you can replay yourself.

last push13 hours ago languagePython licenseMIT
15 clairvoyance ★ 1.6K

Obtain GraphQL API schema even if the introspection is disabled

last push11 months ago languagePython licenseApache-2.0
16 xalgorix ★ 1.3K

Autonomous AI pentesting agents — real-time reconnaissance, vulnerability detection, and exploitation orchestration. Go + TypeScript.

last push4 days ago languageGo licenseApache-2.0
17 reconmap ★ 1.0K

Reconmap is a collaboration-first security operations platform for infosec teams and MSSPs, enabling end‑to‑end engagement management, from reconnaissance throu

last push30 hours ago languageTypeScript licenseMIT
18 h5i ★ 887

Fast, red-teaming browser built for AI agents, with direct HTTP traffic control, sandboxed execution, and auditable sessions. Pure Rust.

last push9 hours ago languageRust licenseApache-2.0
19 opentrap ★ 775

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

last push2 days ago languageJava licenseAGPL-3.0
20 keyFinder ★ 729

Passive API key and secret discovery browser extension for Chrome and Firefox. 80+ detection patterns, zero config.

last push9 days ago languageJavaScript licenseMIT

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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.