ronin
Ronin is a GPL-3.0 Ruby toolkit for security research, penetration testing, and CTF activities. It provides CLI commands and libraries for encoding, decoding, network scanning, vulnerability assessment, and exploit development, with support for third-party repositories.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | ronin-rb/ronin |
| Owner | ronin-rb |
| Primary language | Ruby |
| License | GPL-3.0 — OSI-approved |
| Stars | 750 |
| Forks | 60 |
| Open issues | 34 |
| Latest release | v2.1.1 (2025-02-15) |
| Last updated | 2026-01-12 |
| Source | https://github.com/ronin-rb/ronin |
What ronin is
Ronin is a modular Ruby framework delivering CLI tools and libraries for security tasks including cryptographic operations, data encoding/decoding, DNS/HTTP queries, web vulnerability scanning, and exploit/payload management via git-based repositories. It includes an interactive REPL and web UI for data exploration.
Get the ronin source
Clone the repository and explore it locally.
git clone https://github.com/ronin-rb/ronin.gitcd ronin# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Requires Ruby runtime and gem dependency management; verify compatible Ruby version and bundler setup.
- Modular architecture: core `ronin` provides base CLI/REPL; extended functionality via separate packages (ronin-db, ronin-repos, ronin-exploits, etc.) must be installed separately.
- Database features require local setup and management; review ronin-db documentation for schema and storage requirements.
- Third-party repository support allows community exploit/payload installation; evaluate governance and vetting processes for security implications.
- Integration with external services (DNS, ASN, HTTP) depends on network connectivity and rate-limiting policies of target services.
When to avoid it — and what to weigh
- Requires Commercial Support & Indemnification — GPL-3.0 license mandates source disclosure and derivative work licensing under the same terms. Not appropriate for closed-source commercial products without legal review.
- Need Proprietary, Closed-Ecosystem Tools — Ronin is open-source with no guaranteed vendor support, SLAs, or commercial liability protection. Organizations requiring commercial indemnification should avoid or seek alternatives.
- Production Infrastructure Security Monitoring — Ronin is designed for offensive security research and testing, not for real-time monitoring, detection, or defense operations in production environments.
- Windows-First Environments — Ruby dependency and Unix-centric design may complicate deployment on Windows; limited clarity on native Windows support beyond WSL.
License & commercial use
Ronin is licensed under GPL-3.0 (GNU General Public License v3.0), a copyleft license requiring source code disclosure and licensing of derived works under the same terms. Any modifications or integration into proprietary software must comply with GPL-3.0 obligations or obtain alternative licensing.
GPL-3.0 permits use for commercial purposes (e.g., paid penetration testing services, security consulting) provided the software and any modifications remain under GPL-3.0. However, incorporating Ronin into proprietary commercial products requires careful legal review or alternative licensing arrangement. No commercial support, warranties, or liability indemnification are implied by the license. Organizations seeking commercial terms should contact the project maintainers directly.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Adequate |
| License clarity | Clear |
| Deployment complexity | Low |
| DEV.co fit | Possible |
| Assessment confidence | High |
Ronin is a security research and offensive tooling framework; users are responsible for lawful authorization before deployment. GPL-3.0 source availability enables security auditing but imposes derivative licensing obligations. No Security Policy, vulnerability disclosure process, or cryptographic certification details are documented in provided data. Rely on community review and third-party repository governance; exercise caution with untrusted exploit/payload sources. Regular updates and issue monitoring recommended.
Alternatives to consider
Metasploit Framework
Larger, more mature commercial-friendly alternative with broader exploit/payload library, commercial support options (via Rapid7), and better Windows integration. GPL-3.0 core with proprietary extensions.
OWASP ZAP
Focused on web application security testing and vulnerability scanning; includes GUI, browser integration, and broader commercial backing. Apache 2.0 licensed, permissive for commercial use.
Burp Suite (Community & Pro)
Industry-standard web security testing platform with graphical interface, active scanning, and enterprise support options. Proprietary but widely trusted for penetration testing workflows.
Build on ronin with DEV.co software developers
Assess compatibility with GPL-3.0 licensing, review third-party repository governance, and test integration with your existing security workflows. Consult legal counsel on commercial use implications before deployment.
Talk to DEV.coRelated on DEV.co
Explore the category and the services that help you build with it.
ronin FAQ
Can I use Ronin in a commercial penetration testing service?
How do I extend Ronin with custom exploits or payloads?
What Ruby version does Ronin require?
Is Ronin suitable for real-time production security monitoring?
Work with a software development agency
DEV.co is a software development agency delivering custom software development services to companies building on open source. Our software developers and web developers design, integrate, and ship production systems — spanning web development, APIs, AI, data, and cloud. If ronin is part of your open-source security roadmap, our team can implement, customize, migrate, and maintain it.
Ready to Evaluate Ronin for Your Security Team?
Assess compatibility with GPL-3.0 licensing, review third-party repository governance, and test integration with your existing security workflows. Consult legal counsel on commercial use implications before deployment.