11 self-hosted Mendix alternatives

Build and deploy internal tools, admin panels, and dashboards with a low-code UI builder that connects to databases and APIs and supports JavaScript logic and Git workflows.

40.5k stars4.7k forksApache-2.0last commit 28 Jul 2026Actively maintained

ToolJet is an open-source low-code platform to build and deploy internal tools, dashboards, and workflows with integrations for databases, APIs, and SaaS apps.

38.3k stars5.2k forksAGPL-3.0last commit 24 Jul 2026Actively maintained

Budibase is an open-source low-code platform to build internal tools, portals, forms, and approval workflows with integrations to databases and APIs.

28.2k stars2.2k forkslast commit 27 Jul 2026Actively maintained

Open-source, self-hosted no-code/low-code platform to build internal tools and business applications with a data-model approach, workflows, permissions, and a plugin system.

23.5k stars2.8k forkslast commit 27 Jul 2026Actively maintained

Lowdefy is a config-driven web framework for building internal tools, admin panels, dashboards, CRUD apps, and client portals using YAML or JSON with extensible plugins.

3k stars185 forksApache-2.0last commit 22 Jul 2026Actively maintained

SQLPage is a fast SQL-only web app builder that turns .sql files into interactive web pages and APIs on top of your existing database.

2.5k stars175 forksMITlast commit 25 Jul 2026Actively maintained

Corteza is an open-source low-code platform to build CRM-style apps, structured data systems, and automated business workflows with a strong API-first design.

2.1k stars506 forksApache-2.0last commit 8 Jun 2026Actively maintained

Saltcorn is an open-source no-code platform for building database-backed web and mobile applications with a drag-and-drop UI, views, actions, plugins, and theming.

2k stars346 forksMITlast commit 27 Jul 2026Actively maintained

Open-source low-code platform to build internal tools and customer-facing web apps with a visual UI builder, reusable modules, data-source connectors, and RBAC.

1.6k stars309 forksAGPL-3.0last commit 3 Jan 2026Slowing down

REI3 is an open-source low-code platform to build multi-user business applications with forms, workflows, access controls, integrations, and self-hosted deployment options.

571 stars83 forkslast commit 22 Jul 2026Actively maintained

A low-code graphical database framework to rapidly build forms, reports, workflows and modular business apps with multiple DB support.

58 stars10 forksGPL-2.0last commit 12 Jun 2026Actively maintained