Cybersecurity
The Best Free Cybersecurity Software
Every tool here has a permanent free tier, assessed on what the free plan genuinely delivers rather than on the upgrade path.
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Cloudflare
Edge network combining CDN, security, zero-trust access and developer compute.
4.6(7,900)$0 / $25 per month plus usageDeployment speed4.2Developer experience4.1Edge coverage5.0Cost predictability4.6 - 2
GitLab
Single-application DevOps platform spanning source control, CI/CD, security and deployment.
4.4(8,200)$0 / $29 per user / monthDeveloper experience4.0CI/CD4.7Security tooling4.6Self-hosting5.0 - 3
Datadog
Unified observability across infrastructure, applications, logs and security.
4.4(6,300)$15 per host / monthSignal correlation4.8Coverage breadth4.9Cost predictability2.8Alerting4.5 - 4
Okta
Identity platform for workforce single sign-on, lifecycle management and access governance.
4.4(5,800)$2 per user / monthIdentity coverage4.9Operational overhead3.8Compliance evidence4.6Integration catalogue5.0