Better software, faster.

BESSER is an open-source low-code platform to quickly build all types of (smart) applications. Model once — generate APIs, databases, agents, and full deployments.

Start now — open the editor See our features Star on GitHub
editor.besser-pearl.org

The BESSER online editor — model, generate, deploy. No installation required.

Generates for the stacks you already use

PythonFastAPIDjangoSQLAlchemySQLJavaTerraformPyTorch
What BESSER gives you

A complete low-code toolchain — open, AI-powered, and modular.

From a single model, BESSER produces working software: APIs, databases, full back-ends, AI agents, and deployment manifests.

See all features

15+ generators

Model once, then generate for many targets. BESSER ships generators for databases, REST APIs, web apps, AI agents, and deployment manifests out of the box. A single model becomes working software across platforms.

  • Databases, REST APIs, web apps
  • AI agents and deployment manifests
  • 15+ targets from one model

AI-powered

BESSER combines AI with low-code to speed up modeling and to generate software that embeds AI components. The AI both helps you build and ends up in what you build.

  • AI-assisted modeling
  • Generate software with embedded AI
  • Faster from idea to system

Friendly interface

Different users, one platform. Work in the online editor, create a model from an image, or start from a plain-text description; each entry point fits a different kind of user.

  • Online visual editor
  • Model from an image
  • Start from a textual description

Model anything

BESSER covers the dimensions a real system needs: class diagrams, state machines, object diagrams, agents, and deployment specifications. All built in, all in one place.

  • Class, object & state-machine diagrams
  • Agents and deployment specs
  • Every dimension, built in
15+
Code generators
53
Peer-reviewed papers
11
Researchers & engineers
2
EU Horizon projects
How it works

Model once. Generate everything.

From a single, simple model — code, infrastructure, AI agents, and deployments fall out the other side.

Model

Start your model with drag-and-drop diagramming in the editor, then refine details with forms and structured views. You can also use the chatbot to scaffold entities, relationships, and behaviors from natural-language prompts before polishing the model manually.

Wondering whether BESSER is right for you?

Open the editor and try it in your browser, or talk to us — we love a good problem statement.

Try BESSER Let’s chat