Our mission is to make security testing open, reusable and available to everyone.
So every check, every pack and the full report are free and open source. Run Maester on your desktop, in GitHub Actions or in your own automation. When you want it run for you, there's Maester Cloud.
Your desktop
Freeforever
Run it on your own machine.
Install the module, connect to your tenant and get the full report in one run. Windows, macOS and Linux.
1,256 core checks and the full HTML report
CIS, CISA SCuBA, Zero Trust Assessment, ASD Essential Eight and more
670 more checks in community packs, and checks you write yourself
Maester Cloud does the running for you, with nothing to script or schedule. Pick the hosted option and we run it for you, or self-host it in your own Azure subscription.
Run history and drift detection for every tenant
Track each finding through to resolution
Alerts when something changes
Your data kept isolated, in the Azure region you choose
Formal support
Maester MCP, and more
Your subscription funds open-source Maester, free for everyone.