Looking for an open-source alternative to Microsoft Power Apps? Whether you're building internal tools, automating workflows, or creating data-driven dashboards, there’s a new generation of platforms designed to empower teams with flexibility, speed, and control. These tools offer developer-friendly low-code environments, seamless database integrations, and modern deployment options, without locking you into proprietary systems.
AppSmith
Appsmith is built for speed and depth. It combines low-code development with the power of AI, giving teams the ability to build secure internal apps faster than ever. It goes beyond dashboards, with Appsmith Agents, businesses can embed intelligent assistants into everyday workflows. These agents connect directly to internal data, no RAG required, learning and adapting to deliver insights in real time. From GSK’s automated Linux patching to HeyJobs accelerating legacy modernization by 90%, the platform is trusted across industries. Drag-and-drop simplicity, JavaScript flexibility, Git workflows, and LLM-ready architecture make Appsmith an exceptional choice for teams that need to move fast without sacrificing control.
Budibase
Budibase brings power to the people. It’s open-source, developer-approved, and thoughtfully designed for rapid internal app development. Need to connect a PostgreSQL database or upload a CSV? You’re covered. Budibase turns your data into functional apps almost instantly. With over 40 components ready to go and automation features that handle approvals, alerts, and more, it streamlines the busywork. Deployment is on your terms, host it yourself, scale as needed, and manage everything from user roles to SMTP configs. Whether you're building inventory tools or HR portals, Budibase makes it feel easy, fast, and reliable.
Illa
ILLA focuses on what developers care about: control, performance, and speed. It’s open-source and built for creating internal tools that don’t feel like a compromise. The UI is fast to assemble, the data connectors are robust, and the logic is yours to customize. With built-in support for real-time collaboration, teams can work together like they’re in Google Docs, but for apps. ILLA fits modern infrastructure with Docker and Kubernetes support, and gives you a cohesive design system that doesn’t get in the way. If you've tried Retool but want open-source freedom, ILLA hits the mark with a lean, flexible approach.
From AI agents to automation-ready workflows and seamless real-time collaboration, these platforms provide serious alternatives to Power Apps, without the constraints.