Open-source Microsoft Power Apps alternatives

ToolJet is an open-source platform for creating internal software, including admin panels, dashboards and operational apps that sit on top of your existing databases, APIs and SaaS systems. Apps are assembled visually in a builder, so teams can ship tools without writing a full front end.

AI plays a large role. ToolJet AI turns a text description into pages, queries and components, and a Model Context Protocol server lets coding agents such as Claude Code and Codex build and modify ToolJet apps directly. Agents work against the platform's real component and data contracts, so the output is an ordinary ToolJet app that the team can keep editing in the visual builder with the same permissions, environments and version history. Workflows and AI agents are part of the offering.

You can self-host ToolJet or use ToolJet Cloud, and the open-source foundation is AGPL-3.0 licensed with a JavaScript and TypeScript codebase. It targets teams that need internal software quickly and want an open-source option with a managed alternative.

Budibase is an open-source operations platform for building AI agents, automations and apps that run internal processes. It is model agnostic and describes itself as saving engineers many hours when building these tools, while handling security concerns. Topics place it in the low-code and no-code internal tools space, with CRUD apps and an SQL GUI.

The idea is to run requests, approvals and workflows on one platform instead of stitching several tools together. Staff constantly ask questions, request sign-offs and flag problems, and Budibase agents interpret those requests and carry out the work: creating records, sending approvals to the right people, updating apps and alerting teams. You connect the business systems your operations already rely on, and the platform also supports building data applications over databases and REST APIs.

You can use Budibase Cloud, where the vendor hosts it, or host it yourself with Docker, Kubernetes or DigitalOcean. The repository is written in TypeScript, and its license is listed as 'Other' on GitHub, so check the terms for enterprise features. It suits operations and engineering teams that want internal tools and AI automation without building everything from scratch.

NocoBase is an open-source platform that combines AI with no-code tooling to build business systems quickly. Rather than having AI generate everything from scratch, it has AI build on infrastructure already proven in production and on a visual WYSIWYG no-code editor, which the project says delivers both speed and reliability.

Its approach is collaborative: coding agents are given a complete CLI plus skills, and people use a visual interface, so both can contribute to the same system. Topics show typical uses such as internal tools, admin dashboards, CRUD apps, CRM, ERP and project management, with workflows included. An online demo, documentation, a forum and customer stories are available, and release notes are published on the blog with weekly summaries. It is written in TypeScript.

NocoBase can be installed on your own infrastructure, and its license is listed as 'Other' on GitHub, so review the terms for commercial or enterprise use. It suits teams that want flexible internal systems without maintaining a large custom codebase, and who want to use AI assistance on a stable foundation.

Corteza is a low-code platform that lets teams build and iterate on CRM, business process, and other structured data applications quickly. It also supports intelligent business process workflows and connects to almost any data source. It is written in Go, with a Vue front end, and released under the Apache-2.0 license. It is maintained by Planet Crust, its founder.

Key characteristics include a standards-oriented approach using established data formats, flat role-based access control that supports complex internal security policies, privacy features that help comply with data protection regulations, accessibility following WCAG 2.1, and an API-centric design that makes integration with external services and other Corteza instances straightforward. Applications can be customized from translations and terminology up to entirely new low-code apps.

Planet Crust offers hosted Corteza cloud instances as the easiest way to start, and a DevOps guide covers self-hosting along with backup, restore, and email relay topics. Corteza suits organizations that want an open-source alternative to proprietary low-code CRM platforms and need control over their data.

Steedos Platform is an open-source low-code and no-code platform for building enterprise applications. It follows a metadata-driven architecture similar to Salesforce, where objects, fields, permissions and workflows are described as configuration instead of hand-written code, which speeds up building business apps such as CRM and ERP-style tools.

The project is evolving into ObjectStack, a modular headless stack made of ObjectQL as a protocol for data, logic and UI, ObjectOS as a runtime providing APIs, authentication, permissions and workflow automation, and Object UI as a schema-driven renderer based on React and Tailwind. The README says Steedos v2.x remains supported while future development focuses on ObjectStack and AI-generated applications.

Steedos is written in TypeScript and licensed under AGPL-3.0, with documentation, examples and a community linked from the repository. It is a self-hosted platform and its topics reference tools such as Salesforce, Appsmith, Budibase and Airtable, indicating the space it competes in. It suits development teams and agencies that want to build internal business software on a configurable, open foundation.

Joget is an application platform that combines rapid application development, business process automation and workflow management in a visual, web-based builder. Business and technical teams can use it together to build full enterprise applications without much hand coding, aiming to shorten delivery from months to weeks or days. Apps built on it are mobile ready and cloud ready, and the platform offers APIs for integration and a plugin architecture for extension.

The README describes a marketplace where ready-made apps, plugins and templates can be downloaded, along with a community Q&A forum, a knowledge base, video tutorials, an online academy and translations in more than twenty languages. Deployment is flexible: on-premise, on-demand cloud, Docker, Kubernetes, Cloud Foundry, OpenShift and several cloud marketplaces are listed.

Licensing is split. Joget Community Edition is released under GPL version 3, while the Professional, Enterprise and Large Enterprise editions are covered by a commercial end-user license agreement. The core is written in Java. It suits organizations that want to digitize processes such as approvals and forms with a platform they can run themselves.

Openblocks is an open-source platform for building internal and customer-facing applications, positioned as an alternative to Retool. It targets teams that need to connect to data sources and assemble working apps quickly without designing a custom interface and wiring together multiple languages and frameworks from scratch.

It provides a visual UI builder with more than 50 components, a module and query library for reusable pieces, and native connections to PostgreSQL, MongoDB, MySQL, Redis, Elasticsearch, REST APIs and SMTP, with JavaScript usable throughout for transforming data and controlling components. Custom components can be shared through React and the Openblocks SDK, or whole Openblocks pages can be embedded as a React component. Team features include role-based access control, autosaved and restorable version history, DIY app theming, and audit logs for compliance tracking.

Openblocks is written in TypeScript and React and is released under the AGPL-3.0 license, so it can be self-hosted. A cloud-hosted version is also available at cloud.openblocks.dev. The README includes direct feature comparisons against other low-code tools in its space.