Open-source alternatives to KubeArmor

Kubescape is a security platform for Kubernetes that provides tools for scanning clusters, configurations, and container images against industry compliance and security benchmarks. It functions as a suite of security utilities, including a compliance auditor, a misconfiguration scanner, and a container vulnerability scanner. The project differentiates itself through automated remediation and active enforcement. It can automatically patch operating system vulnerabilities in images and fix security errors within manifest files. It also utilizes an admission controller to block the deployment of

DefectDojo is a vulnerability management system and application security orchestration tool. It serves as a centralized platform for importing, deduplicating, and tracking security findings from multiple scanners and tools to manage an organization's overall security posture. The system distinguishes itself by aggregating findings from various security tools into a single report and normalizing that data to prioritize remediation. It provides specific workflows for vulnerability triage and deduplication to reduce noise and redundant manual work across the software development lifecycle. The

OpenEDR is an endpoint detection and response platform designed to collect telemetry and monitor system activity to identify security breaches. It functions as a host-based intrusion detection system and telemetry collector, gathering detailed data on process, network, and file activity. The system includes a dockerized security stack that bundles search, logging, and visualization tools into containers for analyzing endpoint telemetry. It features a security event visualizer that maps process lineage and indexes logs to facilitate root-cause analysis of attacks. The platform provides capabi

DetectionLab is a reproducible Windows Active Directory security lab designed for testing detection capabilities. It uses an automation framework based on Vagrant and Packer to provision virtualized networks across multiple hypervisors and cloud platforms. The project utilizes Ansible for the declarative installation and configuration of domain services and endpoint security tools. It incorporates a browser-based remote access interface via Apache Guacamole to manage laboratory hosts without requiring standalone remote desktop clients. The environment includes a telemetry pipeline that aggre

Falco is an eBPF runtime security monitor and cloud native detection engine that identifies abnormal behavior and security threats across hosts and containers. It functions as a Linux kernel event auditor, capturing system calls and kernel events in real-time to detect malicious activity. The system distinguishes itself through a rule-based threat detection model that evaluates system activity against a library of community-maintained rules and custom security definitions. It enriches raw kernel events with container and Kubernetes metadata to provide observability into isolated environments

BunkerWeb is a containerized suite of infrastructure tools that functions as a cloud-native web application firewall and Nginx reverse proxy. It provides a security layer for web applications, combining traffic routing with automated SSL certificate management and a web-based security dashboard for monitoring and configuration. The project distinguishes itself through its deep integration with container orchestrators, serving as a Kubernetes ingress controller that automates security settings and service discovery via container labels. It features a plugin-based extension model and a manageme

dae is a high-performance Linux network tool that functions as an eBPF transparent proxy. It intercepts and redirects packets at the kernel level to route internet traffic based on domains, IP addresses, and process names. The project distinguishes itself by modifying TLS handshakes to simulate browser signatures, which prevents server-side detection of proxy traffic. It also implements a full-cone network address translation gateway to maintain stable bidirectional connections and utilizes a latency-based node selector to automatically route traffic through the fastest available proxy nodes.

Kubeshark is a network observability platform designed for Kubernetes environments, functioning as an eBPF-powered engine for cluster-wide traffic analysis. It captures, indexes, and visualizes network activity and API calls directly from the kernel, providing deep visibility into service-to-service communication without requiring sidecar proxies or manual code instrumentation. The platform distinguishes itself through its ability to perform protocol-aware traffic dissection and user-space cryptographic hooking, which allows for the inspection of encrypted traffic and the reconstruction of ap

Keploy is an automated testing platform that leverages kernel-level traffic interception to generate and maintain regression test suites for microservices. By capturing live network traffic and system calls via eBPF, the platform automatically creates deterministic test cases and mocks external dependencies without requiring manual code instrumentation. This approach allows developers to validate application behavior and API contracts by replaying production-like traffic in isolated environments. The platform distinguishes itself through its use of machine learning to perform test maintenance

XNU is a hybrid operating system kernel that combines a microkernel architecture with a monolithic layer for system services. It provides a foundation for operating system development, incorporating standardized system-call interfaces, a modular device driver framework, and mandatory access control security. The architecture features a Mach-based microkernel and a BSD-based monolithic layer. It utilizes a message-passing inter-process communication bus for secure data exchange between isolated kernel components and user-space processes, alongside an object-oriented driver framework that decou

crun is a low-level container runtime that implements the Open Container Initiative specification for managing the lifecycle of isolated processes. It provides the core mechanisms for container creation, execution, and deletion, ensuring compatibility across platforms through standardized lifecycle management. The project distinguishes itself by offering a shared C library that allows container runtime operations to be embedded directly into other compiled applications. It further extends execution capabilities through specialized handlers that enable the deployment of containers within isola

Mizu is a suite of tools for capturing, indexing, and visualizing cloud-native network traffic and decrypted payloads for cluster-wide diagnostics. It provides Kubernetes network observability by using eBPF to index and visualize layer 4 and layer 7 traffic with full cluster context, allowing for the mapping of workload dependencies and the diagnosis of network failures. The project distinguishes itself by using kernel-level hooks to decrypt TLS traffic in plain text without requiring private keys. It further integrates a standardized context protocol to expose indexed network telemetry to AI

Cromite is a privacy-focused browser built as a fork of Chromium that embeds a network-level content blocking engine to intercept advertisements, pop-ups, and tracking scripts before they reach the page. It applies community-maintained public filter lists directly within the browser, eliminating the need for external extensions, and uses a curated patch system applied to the Chromium source tree at build time to add or modify features without maintaining a separate codebase. The browser is hardened against tracking and data leakage through a comprehensive set of privacy and security measures.

Coroot is an observability platform and Kubernetes performance monitor that utilizes eBPF to automatically collect metrics, logs, and traces without requiring manual code instrumentation. It functions as an OpenTelemetry trace analyzer and an LLM observability gateway, exposing system health data to large language models through the Model Context Protocol. The platform differentiates itself by combining automated root cause analysis and AI-driven diagnostics to investigate performance regressions. It also includes a cloud cost monitoring tool that attributes infrastructure spending to specifi

Harden-Windows-Security is a security hardening tool and framework designed to reduce the attack surface of the Windows operating system through policy enforcement. It provides a collection of security presets and templates to implement official hardening standards across multiple devices. The project distinguishes itself through a comprehensive execution control system, featuring a manager for Windows Application Control and a kernel protection suite. It implements strict trust models, including kernel-mode driver whitelisting, signed policy implementation on the EFI partition, and code inte

mirrord is a developer tool that runs a local process inside the network, environment, and filesystem context of a live Kubernetes pod. It duplicates a pod's incoming traffic, environment variables, and file system onto the local machine, making the local process behave as if it were deployed in the cluster — without modifying code or redeploying. The tool achieves this through a combination of eBPF-based system call interception and a lightweight sidecar agent deployed in the target pod. eBPF intercepts network, file, and process calls from the local process, routing them through the cluster

The agent-governance-toolkit is a framework for enforcing security policies, managing zero-trust identities, and sandboxing the execution of autonomous AI agents. It provides a governance layer designed to control the behavior of agents through the use of a security policy engine, cryptographic identity management, and a runtime execution sandbox. The project distinguishes itself through a multi-tier privilege ring system and a cryptographic identity mesh that secures communication between autonomous entities. It implements a decay-based trust scoring mechanism to track entity reliability and

KernelSU is a kernel-based root management framework for Android that provides administrative access to applications by operating directly within the operating system kernel. By integrating management logic into the kernel source, it enables system-wide permission control through syscall interception and function patching. This approach allows for the enforcement of fine-grained mandatory access control, assigning custom security domains to root processes to restrict their capabilities and prevent unauthorized actions. The project distinguishes itself through a systemless modification archite

Sn1per is a vulnerability management platform and penetration testing orchestrator designed to automate reconnaissance, vulnerability scanning, and exploit verification. It functions as a dockerized security toolkit that coordinates multiple tools into a unified automated pipeline to identify security flaws across network and web assets. The platform features an attack surface manager for discovering internet-facing assets through OSINT, DNS enumeration, and certificate transparency. It distinguishes itself with an AI-powered security analyzer that uses large language models to summarize scan

Rancher OS is a cloud-native, container-optimized Linux distribution designed to host and manage containerized workloads with a small host footprint. It functions as a Docker-based operating system that runs core system services and user applications as containers. The system implements an immutable infrastructure workflow by deploying the entire operating system as a set of read-only images. To prevent configuration drift and ensure a consistent boot state, the primary system partition is mounted as read-only, while persistent settings and user data are stored on a separate writable configur

CrowdSec is a collaborative, distributed security engine designed for threat detection and infrastructure protection. It functions as an intrusion detection system that parses logs and network traffic to identify malicious patterns, utilizing a bucket-based threshold detection model to aggregate events and trigger alerts. The platform is built on a modular architecture that includes a centralized local API server for managing security signals and a relational database for persistent storage of remediation decisions. What distinguishes the project is its decoupled enforcement model, which offl

This project is a unified, cloud-native policy engine designed to decouple authorization and security logic from application codebases. It functions as a centralized authorization service that evaluates structured input data against declarative rules, enabling consistent policy enforcement across microservices, infrastructure, and continuous integration pipelines. The engine utilizes a specialized logic programming language to express complex constraints, which are compiled into an optimized intermediate representation for high-performance evaluation. By supporting both sidecar-based deployme

Shannon is an integrated security platform designed for autonomous penetration testing, static and dynamic analysis, and automated vulnerability remediation within self-hosted, private infrastructure. It functions as a unified security suite that orchestrates the entire lifecycle of vulnerability management, from initial discovery and reachability prioritization to the generation and verification of code-level patches. The platform distinguishes itself through its agentic approach to security, deploying autonomous agents to execute both black-box and white-box exploits against running applica

Tracee is a cloud-native runtime security and forensics tool that uses eBPF to capture system calls and kernel events in real time. It operates as a standalone binary or a Helm-deployable agent for Kubernetes, normalizing system calls, network events, and container activities into a unified event pipeline for consistent analysis. The tool distinguishes itself through policy-driven event filtering using YAML-based rules, allowing users to target specific workloads and reduce noise during monitoring. It includes built-in threat detection signatures that flag suspicious behavioral patterns witho

Kubero is a self-hosted Platform as a Service (PaaS) that simplifies the deployment, scaling, and management of containerized applications on Kubernetes. It functions as an application manager, CI/CD orchestrator, and multi-tenant manager, allowing users to run workloads without writing manual configuration files. The platform distinguishes itself through automated image synthesis, transforming source code from Git repositories into deployable containers via buildpacks, Dockerfiles, or nixpacks. It implements a GitOps delivery model with automated pipelines that trigger builds on push events

This project is a containerized machine learning workflow engine and orchestrator designed to automate the end-to-end lifecycle of machine learning models on Kubernetes clusters. It functions as an MLOps pipeline compiler that transforms a domain-specific language into structured specifications for portable and scalable deployment. The platform provides a multi-tenant environment with isolated namespaces and identity provider authentication. It distinguishes itself through a combination of container-based task isolation, strongly typed artifact management for data passing, and content-address