All apps

Design and create

Mermaid Live Editor

Diagrams from text

About

Diagrams from plain text. Type a few lines describing a flow, a sequence or a timeline and see the picture appear as you type.

Notes

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.

Single container using the official multi-arch image, pinned by digest.

Alternative to: Lucidchart

Facts

Version
1.0.3
Source
Official
Runtime
Container
Devices
Pi · Linux · Mac
Min. RAM
128 MB
Project
github.com

Install

How to run Mermaid Live Editor yourself

  1. 01

    Connect a device

    A Raspberry Pi, a Linux machine or a Mac that is on anyway.

  2. 02

    Install it

    One click in your Obacht account. Your device checks the signature before anything runs.

  3. 03

    Open it from anywhere

    It gets a web address under your-name.obacht.space, with HTTPS. Add your own domain if you have one.

Open-source contribution

Forwarded

A fixed amount per install goes to Mermaid, forwarded via Open Collective.

Last checked 2026-07-29

Run it on your own hardware.

Obacht is in a closed pilot phase. Put yourself on the list. We let people in a few at a time, so it can take a while.

Self-host Mermaid Live Editor