Open source. Open possibilities.

Expo is an open-source framework for building universal native apps with React that run on Android, iOS, and the web. The repository bundles the Expo SDK, Modules API, CLI, Router, Go client, templates, and documentation.

Nuxt is a free, open-source full-stack framework for building type-safe, performant Vue.js applications with server-side rendering, static generation, automatic routing, and 300+ extensible modules.

Next.js is Vercel's open-source React framework for building full-stack web applications. It extends the latest React features and integrates Rust-based JavaScript tooling for fast builds, and is used by some of the world's largest companies.

Zag provides headless, framework-agnostic state machines for accessible JavaScript UI components, with adapters for React, Solid, Vue and Svelte and unstyled APIs for building your own design system.

Astro is a website build tool for the modern web, focused on content-driven sites and combining developer experience with lightweight output. It offers official integrations for React, Vue, Svelte, MDX, SSR adapters, and language tooling.