Open Source Security Apps
Discover the best open source security tools for vulnerability scanning, threat detection & access control. Protect your system with community-driven solutions.
Apps in Security
Sentry
Analytics · Developer Tools · Monitoring
Developer-first error tracking and performance monitoring platform with AI-powered root-cause analysis across 20+ languages and frameworks.
Bitwarden Server
Password Manager · Security
Self-hosted, open-source password management backend with zero-knowledge encryption and enterprise-grade identity services
authentik
Authentication · Security
The self-hosted Identity Provider that replaces Okta, Auth0, and Entra ID with a unified SSO platform supporting SAML, OAuth2/OIDC, LDAP, RADIUS, and WebAuthn.
Passbolt API
Password Manager · Security
Self-hosted, end-to-end encrypted password manager API built for teams who demand full ownership of their credentials.
Tracecat
AI Agents · Automation · Security
Open-source agentic security automation platform that runs AI agents and durable workflows at scale with sandboxed execution.
Maltrail
Monitoring · Security
Detect malicious network traffic using 47+ live threat feeds, heuristics, and a fat-client reporting dashboard — no commercial stack required.
OpenSandbox
Developer Tools · Security
Secure, fast, and extensible sandbox runtime for AI agents with multi-language SDKs and Docker/Kubernetes runtimes.
Shadowbroker
Analytics · Monitoring · Security
Self-hosted OSINT dashboard that fuses 60+ live intelligence feeds — flight tracking, ship AIS, satellites, CCTV, seismic and radio networks — into one real-time map, with an agent-ready command channel for AI co-analysts.
CertMate
Devops · Security
Automate SSL certificate lifecycle across any CA, 24+ DNS providers, and every major secret store — with a REST API, web dashboard, and built-in MCP server for AI-driven ops.
tirreno
Monitoring · Security
Embed security inside your product — detect threats, fraud, and abuse in real time at the application layer
About Security
Security software is a critical component of modern development and operations. These applications focus on identifying, preventing, and responding to security risks across a variety of platforms and environments. Core functionality often includes vulnerability scanning, threat detection, access control, encryption, and security monitoring. They provide layers of defense to safeguard sensitive information and maintain system integrity.
Typical use cases include protecting web applications from common attacks, securing cloud infrastructure, managing user authentication and authorization, detecting malicious activity within networks, and ensuring data privacy. Features commonly found in this category include intrusion detection systems (IDS), firewalls, secure code analysis tools, and compliance auditing capabilities. Effective security solutions allow teams to proactively identify weaknesses before they can be exploited, minimizing potential damage and downtime.
Investing in robust security practices is paramount for any organization handling data or operating online. Open source Security applications offer transparency, customizability, and community support – providing developers with greater control over their security posture. They help address compliance requirements, build trust with users, and protect valuable assets from evolving cyber threats. Regular security assessments, incident response planning tools, and secure communication protocols are key benefits.
