Open Source Alternatives to Mendix

A low-code application platform that enables the development, deployment, and orchestration of AI agents and business applications. The platform provides tools for AI/ML model deployment, process orchestration, and enterprise governance, allowing users to connect existing data and bring their own large language models. It is designed for a hybrid workforce of developers and business users and supports deployment across public clouds, private clouds, or on-premises environments. The software includes features for agile project management and collaborative development within a single IDE. Users can build production-grade solutions and AI agents that turn pilots into value drivers while maintaining auditable and traceable solutions at every stage of development. The platform integrates with existing systems of record and allows for the swapping of frontier, open-source, or private models to suit specific enterprise policies.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Mendix give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Mendix. The most popular is REI3. It uses the MIT license and ships an official Docker image.