Create diagrams from simple text — flowcharts, sequence, class, state, Gantt and more — using Mermaid syntax, rendered live in your browser. Stateless: diagrams are encoded in the URL / your browser, nothing is stored on the server.
Notes
Single container using the official multi-arch image, pinned by digest.
Open-source contribution
A fixed amount per install goes to Mermaid, forwarded via Open Collective.
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