Prowler is an open-source cloud security platform designed for continuous monitoring, security assessments, and compliance automation across AWS, Azure, GCP, Kubernetes, M365, and more. It provides hundreds of pre-built checks and supports numerous industry standards and regulatory frameworks, enabling organizations of all sizes to simplify, scale, and cost-effectively manage their cloud security posture.

How It Works

Prowler operates as a comprehensive security tool with a flexible architecture comprising a Command Line Interface (CLI), a web-based Prowler App (UI and API), and an SDK. It employs a vast library of checks to audit cloud resources against security best practices and compliance mandates. The platform's advantage lies in its extensive multi-cloud support and its ability to integrate with various security workflows, offering both automated assessments and detailed reporting.

Quick Start & Requirements

• CLI Installation: Install via pip: pip install prowler (requires Python >3.9.1, <3.13).
• Prowler App (Docker Compose): Download docker-compose.yml and .env files, then run docker compose up -d. Access the UI at http://localhost:3000. Requires Docker Compose. Default containers are linux/amd64; configure --platform linux/amd64 or DOCKER_DEFAULT_PLATFORM=linux/amd64 for other architectures.
• Documentation: Comprehensive guides are available at https://docs.prowler.com/.

Highlighted Details

• Extensive multi-cloud support: AWS (576 checks, 82 services), Azure (162 checks, 19 services), GCP (79 checks, 13 services), Kubernetes (83 checks, 7 services), GitHub, M365.
• Supports numerous compliance frameworks including CIS, NIST 800, NIST CSF, CISA, FedRAMP, PCI-DSS, GDPR, HIPAA, SOC2, and ENS.
• Offers a web UI (Prowler App) for visualization and a CLI for automation and scripting.
• Beta integrations include Infrastructure as Code (IaC), MongoDB Atlas, and Large Language Models (LLM).

Maintenance & Community

The project is actively maintained, with a table detailing supported services and frameworks. Community engagement is encouraged, though specific links to Discord, Slack, or other direct community channels are not detailed in the README.

Licensing & Compatibility

Prowler is licensed under the Apache License 2.0. This permissive license allows for commercial use and integration into closed-source projects without significant restrictions.

Limitations & Caveats

Integrations for IaC, MongoDB Atlas, and LLM are currently in Beta. Default Docker container images are built for linux/amd64, necessitating explicit configuration for alternative architectures. Unstable container tags (e.g., latest, v4-latest) should be avoided in production environments.