Web Modeling Editor

Design a system, generate its code, and keep the model you can come back to. Use the canvas or describe your system to the assistant.

Open the online editor to get started. The visual modeling tutorial needs no installation or AI key.

Your first session

01 / Draw a model

Create a small library model, check it, and download Python classes.

Your first project

02 / Describe a system

Ask the assistant to build and edit diagrams, then review its changes.

Use the assistant

03 / Generate an application

Start a Spec-Driven Agent run and follow its progress through to a download.

Build with the agent

Keep your work

Projects are stored in your browser. Use File > Export Project to save a portable copy. Project Management explains importing, exporting, and continuing from GitHub.

Need something else?

This site is one of three BESSER documentation sites. The other two are:

  • BESSER docs: the B-UML modeling language, the Python library, and the code generators.

  • Modeling Agent docs: running, configuring, and extending the service behind the editor’s AI assistant.