Home/Free Cloud Security Tools

Free Cloud Security Tools

Comprehensive collection of free and open source cloud security tools for AWS, Azure, GCP, and multi-cloud environments. Secure your cloud infrastructure with curated CSPM, CWPP, and IaC scanning tools.

473 tools·45 sub-categories·Updated April 2026

Showing 24 of 473 tools

ProxmoxVE icon

ProxmoxVE

community-scripts/ProxmoxVE

Script

Proxmox VE Helper-Scripts (Community Edition)

25.0K
3 months ago
prowler icon

prowler

prowler-cloud/prowler

Tool

Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment.

13.1K
about 1 month ago
aws-cdk icon

aws-cdk

aws/aws-cdk

Framework

The AWS Cloud Development Kit is a framework for defining cloud infrastructure in code

12.2K
10 months ago
my-arsenal-of-aws-security-tools icon

my-arsenal-of-aws-security-tools

toniblyx/my-arsenal-of-aws-security-tools

Documentation

List of open source tools for AWS security: defensive, offensive, auditing, DFIR, etc.

9.3K
8 months ago
keda icon

keda

kedacore/keda

Tool

KEDA is a Kubernetes-based Event Driven Autoscaling component. It provides event driven scale for any container running in Kubernetes

9.1K
10 months ago
DevOps-Guide icon

DevOps-Guide

Tikam02/DevOps-Guide

Documentation

DevOps Guide - Development to Production all configurations with basic notes to debug efficiently.

8.7K
10 months ago
fission icon

fission

fission/fission

Framework

Fast and Simple Serverless Functions for Kubernetes

8.7K
10 months ago
atlantis icon

atlantis

runatlantis/atlantis

Tool

Terraform Pull Request Automation

8.3K
10 months ago
checkov icon

checkov

bridgecrewio/checkov

Tool

Prevent cloud misconfigurations and find vulnerabilities during build-time in infrastructure as code, container images and open source packages with Checkov by Bridgecrew.

8.2K
5 months ago
ScoutSuite icon

ScoutSuite

nccgroup/ScoutSuite

Tool

Multi-Cloud Security Auditing Tool

7.3K
8 months ago
tfsec icon

tfsec

aquasecurity/tfsec

Tool

Tfsec is now part of Trivy

7.0K
about 1 month ago
cloudmapper icon

cloudmapper

duo-labs/cloudmapper

Tool

CloudMapper helps you analyze your Amazon Web Services (AWS) environments.

6.2K
8 months ago
azure-sdk-for-net icon

azure-sdk-for-net

Azure/azure-sdk-for-net

Library/SDK

This repository is for active development of the Azure SDK for .NET. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/dotnet/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-net.

5.8K
10 months ago
guide icon

guide

hobby-kube/guide

Documentation

Kubernetes clusters for the hobbyist.

5.6K
8 months ago
strimzi-kafka-operator icon

strimzi-kafka-operator

strimzi/strimzi-kafka-operator

Framework

Apache Kafka® running on Kubernetes

5.3K
10 months ago
ThreatMapper icon

ThreatMapper

deepfence/ThreatMapper

Tool

Open Source Cloud Native Application Protection Platform (CNAPP)

5.2K
about 1 month ago
serverless-express icon

serverless-express

CodeGenieApp/serverless-express

Library/SDK

Run Express and other Node.js frameworks on AWS Serverless technologies such as Lambda, API Gateway, Lambda@Edge, and more.

5.2K
10 months ago
terrascan icon

terrascan

tenable/terrascan

Tool

Detect compliance and security violations across Infrastructure as Code to mitigate risk before provisioning cloud native infrastructure.

5.2K
5 months ago
tsuru icon

tsuru

tsuru/tsuru

Tool

Open source and extensible Platform as a Service (PaaS).

5.1K
10 months ago
Cloud-Free-Tier-Comparison icon

Cloud-Free-Tier-Comparison

cloudcommunity/Cloud-Free-Tier-Comparison

Documentation

Comparing the free tier offers of the major cloud providers like AWS, Azure, GCP, Oracle etc.

5.1K
10 months ago
pacu icon

pacu

RhinoSecurityLabs/pacu

Tool

The AWS exploitation framework, designed for testing the security of Amazon Web Services environments.

5.0K
3 months ago
azure-sdk-for-python icon

azure-sdk-for-python

Azure/azure-sdk-for-python

Library/SDK

This repository is for active development of the Azure SDK for Python. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/python/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-python.

5.0K
10 months ago
devtron icon

devtron

devtron-labs/devtron

Tool

The only Kubernetes dashboard you need

4.9K
10 months ago
learn-to-cloud icon

learn-to-cloud

learntocloud/learn-to-cloud

Educational Resource

Learn the fundamentals of cloud computing

4.9K
10 months ago

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Frequently Asked Questions

What are the best free cloud security tools?

Top free cloud security tools include Prowler (AWS security auditing), ScoutSuite (multi-cloud auditing), Checkov (IaC scanning), Trivy (container vulnerability scanning), and Falco (runtime security). These cover configuration auditing, compliance, and threat detection across major cloud providers.

How do I secure my AWS environment for free?

Use Prowler for automated AWS security auditing, CloudTrail for logging, and Config for compliance monitoring. Open source tools like ScoutSuite and Steampipe provide comprehensive visibility into misconfigurations without cost.

What is CSPM?

Cloud Security Posture Management (CSPM) tools continuously monitor cloud infrastructure for misconfigurations and compliance violations. Free CSPM tools include Prowler, CloudSploit, and ScoutSuite. They check against CIS Benchmarks, NIST, PCI DSS, and other frameworks.

How do I scan Infrastructure as Code for security issues?

Tools like Checkov, tfsec, Terrascan, and KICS scan Terraform, CloudFormation, Kubernetes manifests, and other IaC files for security misconfigurations before deployment. Integrating these into CI/CD pipelines prevents insecure infrastructure from reaching production.