The full-featured diagram editor — flowcharts, UML, network and org charts, mockups and more. Diagrams are saved to your own device or browser, so nothing leaves the box; the template itself is stateless.
Notes
Single container using the official multi-arch image.
Open-source contribution
freedraw.io is commercially funded and takes no donations. We cannot forward anything, so this template costs nothing.
Last checked 2026-07-29
01
Connect a device: a Raspberry Pi, a Linux machine, or an Apple silicon Mac.
02
Click install in the dashboard. The template is signed; your device verifies the signature before anything runs.
03
Optionally attach your own domain. HTTPS certificate included, no port forwarding.
Your data stays on your device. obacht handles the tunnel, SSL, and domain.
Sign up for the closed beta