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.
The BESSER online editor — model, generate, deploy. Zero install.
Generates for the stacks you already use
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.
15+ generators
Databases, REST APIs, web apps, AI agents, deployment manifests — BESSER ships generators for many platforms out of the box.
AI-powered
BESSER combines AI and low-code to accelerate modeling and to generate software systems that embed AI components.
Friendly interface
Use the online editor, create a model from an image, or write a textual description. One UI for each type of user.
Model anything
Class diagrams, state machines, object diagrams, agents, deployment specifications — built-in support for every dimension.
Model once. Generate everything.
From a single, simple model — code, infrastructure, AI agents, and deployments fall out the other side.
Model-based
Model all aspects of your software system in the same tool — class diagrams, state machines, agents, deployment specs.
No installation
Use our online editor to model, generate, and deploy. Nothing to install. Free forever.
Customizable
All aspects of BESSER can be tailored — generators, modeling languages, even the editor itself.
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.