Download SAFEMACHINE
Free. Offline. No account, no telemetry, no cloud. Pick your operating system below. The app runs entirely on your device and never sends your work anywhere.
Unzip it and run the app inside. Nothing is installed, and deleting the folder removes it. On first launch Windows may show a blue "Windows protected your PC" box, because the app is not code-signed. Click More info, then Run anyway.
Unzip it and move the app where you like. On first launch macOS may say the app is from an unidentified developer. Right-click (or Control-click) the app, choose Open, then confirm. You only do this once.
No installation needed. Unzip it and run the app inside (chmod +x the executable if your system asks).
Need an older build or the full changelog? See all releases. The buttons above always give you the newest version, so they never go out of date.
The downloads are not code-signed yet. A signing certificate is a paid step planned for a later release. Rather than hide that, the steps above clear the prompt safely, and the source build is reproducible.
SAFEMACHINE never auto-updates or phones home. When a new version ships, download it again from this page. Your saved projects stay where they are.
Everything is stored locally by the app on your own device. Nothing is uploaded. You can export and back up your projects at any time.
Every framework is also a free worksheet you can print and fill in by hand. Get the worksheets.