Free alternatives to Bubble

Custom web apps with data, forms, screens, and automations; design freedom is far below Bubble's.

Versus paying: Budibase's component and layout system is optimized for internal business screens and is far less flexible for polished public consumer interfaces than Bubble.

Setup: Docker image or Docker Compose; Kubernetes is also supported

Watch for: Requires Docker and persistent storage; production use also means owning upgrades, TLS, backups, and database/network access

27,902 GitHub stars (checked Aug 6, 2026)

A self-hosted business-app suite with records, pages, workflows, charts, and enterprise-grade amounts of configuration.

Versus paying: Corteza is a record-and-workflow suite, not a pixel-flexible public web-app designer, so a consumer-facing Bubble product will look and behave much more constrained.

Setup: Docker Compose with a configured MySQL or PostgreSQL database

Watch for: Docker, a database, secrets, persistent-volume permissions, and a reverse proxy/TLS are the first operational hurdle

2,100 GitHub stars (checked Aug 6, 2026)

Forms, lists, workflows, and role-aware apps from a product old enough to have survived several no-code fashions.

Versus paying: Joget excels at forms and workflows but cannot approach Bubble's freedom for bespoke public-facing layouts, interactions, and responsive design.

Setup: Download the Community Edition bundle or deploy its Docker image/on-premises package

Watch for: The first real hurdle is administering a Java web stack and database rather than clicking through a managed signup

607 GitHub stars (checked Aug 6, 2026)

A full database-backed web-app builder with pages, roles, actions, workflows, and plugins; more business app than consumer startup.

Versus paying: NocoBase is fundamentally a database-backed administrative app builder, so it gives up Bubble's consumer-app design freedom and front-end plugin ecosystem.

Setup: NocoBase CLI or Docker deployment with MySQL, MariaDB, or PostgreSQL

Watch for: Requires a database, secrets, and deployment administration; the community license also preserves NocoBase branding and restricts some uses

23,600 GitHub stars (checked Aug 6, 2026)

A sober business-app builder with forms, reports, roles, workflows, and no per-user meter.

Versus paying: REI3's utilitarian forms, reports, and pages are a poor substitute for Bubble's highly customized public front ends and interaction design.

Setup: Native Linux/Windows server package or Docker Compose, connected to PostgreSQL

Watch for: You must provision PostgreSQL and configure a server/reverse proxy; it is not a managed one-click workspace

571 GitHub stars (checked Aug 6, 2026)