Topic
Open-source startups tagged #security
28 open-source startups in this directory carry the GitHub topic #security. 21 pushed code in the last 30 days, 3 have been quiet for 31–120 days, 4 have not pushed in over 120 days or are archived. Topics are set by each repository’s own maintainers, so this is what those projects chose to call themselves rather than a category we assigned.
Ship status
21 of 28 pushed in the last 30 days.
The list
All 28, most-starred first.
The last column is the most recent push to any branch, by a person or a bot — it is not a claim that anyone is maintaining the project, and a quiet repository may be a finished one.
| Project | What it does | Stars | Ship status | Last push |
|---|---|---|---|---|
Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS | 77.8K | Still shipping | ||
Open-source AI penetration testing tool to find and fix your app’s vulnerabilities. | 68K | Still shipping | ||
Shannon is an AI pentester for web applications and APIs. It analyzes your source code, identifies attack vectors, and executes real exploits to prove vulnerabilities before they reach production. | 48.8K | Still shipping | ||
Infisical is the open-source platform for securing secrets, certificates, access, and AI Agents. | 29.7K | Still shipping | ||
The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready. | 29.2K | Still shipping | ||
⚙️ NGINX config generator on steroids 💉 | 28.3K | Gone silent | ||
The authentication glue you need. | 25.9K | Still shipping | ||
SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits. | 22.7K | Still shipping | ||
Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy. Easily collect, visualise, and analyse data from websites & apps. Star us on GitHub ⭐️ – Pull Requests welcome! | 21.9K | Still shipping | ||
The easiest, and most secure way to access and protect all of your infrastructure. | 21K | Still shipping | ||
Get Android app updates straight from the source. | 20.3K | Still shipping | ||
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱! | 19.5K | Still shipping | ||
Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go. | 17.6K | Slowed | ||
Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads. | 17.2K | Still shipping | ||
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data. | 16.3K | Still shipping | ||
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ https://windows-internals.com | 16.2K | Still shipping | ||
Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs. | 15.1K | Still shipping | ||
Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment. | 15K | Still shipping | ||
Database governance built for humans and agents — controlling changes and access across every major database. | 14.6K | Still shipping | ||
Open-Source Phishing Toolkit | 14.3K | Gone silent | ||
OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch. | 14.1K | Slowed | ||
Free cross-platform password manager compatible with KeePass | 13K | Gone silent | ||
Netmaker makes networks with WireGuard. Netmaker automates fast, secure, and distributed virtual networks. | 11.8K | Still shipping | ||
Kubescape is an open-source Kubernetes security platform for your IDE, CI/CD pipelines, and clusters. It includes risk analysis, security, compliance, and misconfiguration scanning, saving Kubernetes users and administrators precious time, effort, and resources. | 11.8K | Still shipping | ||
一款长亭自研的完善的安全评估工具,支持常见 web 安全问题扫描和自定义 poc | 使用之前务必先阅读文档 | 11.8K | Gone silent | ||
Automated penetration testing & attack surface management platform. Recon, scan, exploit, report — 600+ exploits, 90+ integrations, 10K+ detections. | 11.4K | Slowed | ||
🛡️ Open-source and cloud-native Web Application Firewall (WAF) | 11.1K | Still shipping | ||
Open Cyber Threat Intelligence Platform | 10.1K | Still shipping |
Related collections
Sideways from here.
The 8 largest other topics in the directory, then the other ways to slice it.