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.

Storybook is a frontend workshop for building, documenting, and testing UI components and pages in isolation. It supports many frameworks and offers addons for accessibility, documentation, and interactive development.

Appwrite is an open-source, all-in-one development platform that provides backend infrastructure and web hosting for web, mobile, and AI applications.

React Hook Form is a small, dependency-free React library for form state management and validation, working on web and React Native. It embraces native HTML validation and integrates with schema validators like Yup, Zod, AJV, Superstruct and Joi.

Threadbase Mobile is a local-first mobile control plane for monitoring and managing AI coding agent sessions, such as Claude Code and Codex, via a connected tb-streamer instance.

Ignite is a long-maintained React Native/Expo project boilerplate from Infinite Red, offering a CLI plus component and model generators. It bundles a curated tech stack, a themable component library, and documentation to speed up new mobile app setup.

Over-the-air update system for Expo and bare React Native apps with channel-based releases, targeted rollouts, rollback safety, and a bundle analysis tool called Bundle Drop Sight.

A performant, highly configurable React Native bottom sheet component with smooth gesture interactions, snapping animations, keyboard handling, and broad scrollable/navigation integration.

HeroUI Native is an Apache-2.0 React Native UI component library positioned as beautiful, fast, and modern. It provides documentation, a quick-start example app, and a preview app for exploring components and variants on device.

Transform is an open-source polyglot web converter that converts between many data and code formats in the browser. Built with Next.js, it offers per-route transformers and can be self-hosted.

react-native-graph is a React Native line graph component built on Skia, designed for smooth, animated charts in mobile apps. It offers pan scrubbing, gradient fills, axis labels, selection dots, and a static renderer for list views.

A curated directory of the React ecosystem, covering frameworks, component libraries, state management, styling, routing, testing, forms, charts, renderers, and React Native resources.

A privacy-first, open-source analytics SDK for React Native and Expo applications to track custom events and report errors.

Privacy-focused Fathom Analytics integration for React, Next.js, and React Native. Provides automatic pageview tracking, custom event tracking, goal conversion tracking, and full TypeScript support with a lightweight bundle size.

A high-performance React Native camera library offering photo/video capture, QR scanning, frame processors for AI tasks, GPU-accelerated resizing, HDR/night modes, and customizable resolutions up to 8K.

A collaborative, categorized directory of open-source iOS apps with source code links and descriptions, useful for developers seeking real-world reference examples.

PouchDB SQLite adapter offers a generic SQLite backend for PouchDB, supporting multiple SQLite implementations via abstraction, with core adapter, abstract DB interface, and plugins for Capacitor, Expo, OP SQLite, Cloudflare DO, and more.

React Native is a framework for building native Android and iOS apps with React. JavaScript code renders to native platform UI, with Fast Refresh, native modules and access to a large ecosystem of community libraries.

A curated collection of 500 React interview questions and answers covering core concepts, hooks, Redux, routing, testing and more, aimed at helping developers prepare for React job interviews.

RunAnywhere is a cross-platform SDK suite for running AI models fully on-device across phones, browsers, desktops, and servers. It supports LLMs, vision, speech, voice agents, RAG, embeddings, and image generation with a single semantic API.