BESSER — Better Software, Faster<br>Try BESSER

Better software, faster.

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

Start now — open the editor<br>See our features<br>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.<br>From a single model, BESSER produces working software: APIs, databases, full back-ends, AI agents, and deployment manifests.

15+ generators<br>Databases, REST APIs, web apps, AI agents, deployment manifests — BESSER ships generators for many platforms out of the box.

Details<br>AI-powered<br>BESSER combines AI and low-code to accelerate modeling and to generate software systems that embed AI components.

Details<br>Friendly interface<br>Use the online editor, create a model from an image, or write a textual description. One UI for each type of user.

Details<br>Model anything<br>Class diagrams, state machines, object diagrams, agents, deployment specifications — built-in support for every dimension.

Details

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15+ generators<br>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.<br>Databases, REST APIs, web apps<br>AI agents and deployment manifests<br>15+ targets from one model

AI-powered<br>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.<br>AI-assisted modeling<br>Generate software with embedded AI<br>Faster from idea to system

Friendly interface<br>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.<br>Online visual editor<br>Model from an image<br>Start from a textual description

Model anything<br>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.<br>Class, object & state-machine diagrams<br>Agents and deployment specs<br>Every dimension, built in

15+<br>Code generators<br>53<br>Peer-reviewed papers<br>11<br>Researchers & engineers<br>EU Horizon projects

How it works Model once. Generate everything.<br>From a single, simple model — code, infrastructure, AI agents, and deployments fall out the other side.

Model

Describe your whole system once in the web editor — class diagrams, state machines, agents, and deployment specs in a single model.

Generate

Turn that model into working software — REST APIs, databases, back-ends, and AI agents — with 15+ generators for the stacks you already use.

Deploy

Ship straight from the editor with generated deployment manifests. Nothing to install — free forever.

Model<br>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<br>Let’s chat