Open-source Bubble alternatives

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.

Magic is an open-source platform for generating full-stack applications and AI agents from natural language. It produces the database layer, a secured API, business logic and a frontend, and positions itself as an alternative to Lovable, Bolt and Replit that gives you the whole backend on your own hardware without lock-in.

An API wizard can point at an existing MySQL, PostgreSQL, SQL Server or MariaDB database and generate a complete secured REST API, which you can then extend in plain English without a build or deploy step. It can wrap third-party APIs from an OpenAPI or Swagger URL, build database-driven agents behind role-based access control, create embeddable chatbots grounded in crawled website content, run scheduled jobs and serve static sites and single-page apps. An MCP server exposes every endpoint as a tool for Claude, Cursor or Codex.

Magic is built on .NET with the Hyperlambda language and is licensed under MIT. It runs locally in about a minute using Docker, and its stated use cases include CRM systems, admin panels, booking systems and internal tools. It suits developers who want AI-generated apps with a self-hosted, auditable backend.

Structr is a generic low-code development and runtime platform built on graph technology. It is not tied to one use case and is meant for building fully custom applications, including web applications, graph-database-backed back ends, data-centric systems, middleware and integration components.

At its core Structr keeps both application components, such as schema, UI definitions, templates, scripts and workflows, and the application data in a graph database (Neo4j). That gives schema flexibility and expressive data modeling without join-heavy queries, and the schema can be represented as JSON Schema with import and export. A virtual file system manages files with custom metadata and can store binary content on external providers such as S3. Development happens in a web-based developer and admin UI that works as an integrated IDE.

The README is explicit about what Structr is not: it is not a prebuilt CMS, CRM or ERP, a website builder, or an industry template collection, but a set of building blocks for your own applications. The GitHub repository is a clone, and development and issue tracking have moved to gitlab.structr.com. The license is listed as Other, and the topics mention GraalVM polyglot programming.

Noodl is a low-code platform for creating custom applications and experiences, built as a visual programming environment. It aims to speed up development and lets designers and developers produce apps with minimal coding knowledge.

The repository is the open-source continuation of the formerly closed-source product, with pre-built binaries on GitHub and guidance for migrating projects to a Git provider, moving the backend and database, and self-hosting the frontend. Documentation is available on a docs site and the main support channel is Discord. The editor is built with TypeScript, React and JavaScript.

Licensing is split: editor components are under GPLv3, while the runtime packages used by deployed applications (noodl-runtime, noodl-viewer-cloud and noodl-viewer-react) are under MIT. Source code of applications you create is MIT, so project-specific runtime changes need not be redistributed.