--- title: "React Native & AI Open Source Tools | Callstack" description: "Explore Callstack's open source libraries, developer tools, and AI agent infrastructure for building, testing, and delivering React and React Native apps." url: https://www.callstack.com/open-source updated: 2026-10-30T18:14:54.202Z --- # React Native & AI Open Source Tools | Callstack Explore Callstack's open source libraries, developer tools, and AI agent infrastructure for building, testing, and delivering React and React Native apps. OPEN SOURCE ## Built for teams and agents to ship faster From core libraries to AI agent infrastructure, our open source work helps teams build better apps and gives agents the tools they need to work inside your codebase. [Explore projects](#os) · [Book consultation](https://www.callstack.com/contact) - **50M+** Downloads / month - **300+** React Native commits - **67K+** GitHub stars - **150+** OSS Projects ### Used across production apps Teams use our libraries every month to build, test, release, and improve React Native products at real high-trafficproduction scale. ### Part of the React Foundation We help shape the framework your mobile products depend on. Our open source sits close to the decisions behind React Native. ### Maintained with the community These projects grow through real usage, contributor feedback, and engineers who ship production React Native apps every day. ### The stack for AI-native delivery From core libraries to agent infrastructure, our projects give teams and agents the tools to work inside real codebases. Open source ## Tools for teams and agents. From core React Native libraries to agent infrastructure, these projects help engineers and AI agents inspect, validate, automate, and ship real apps. - [Reassure](https://github.com/callstack/reassure): Performance testing companion for React and React Native (583k+ downloads/mo, 1k+ stars) - [Re.Pack](https://github.com/callstack/repack): A webpack-based toolkit to build your React Native application with full support of webpack ecosystem (2M+ downloads/mo, 1k+ stars) - [Rock](https://github.com/callstack/rock): Modular toolkit for teams building React Native apps (38k+ downloads/mo, 700 stars) - [React Native Testing Library](https://github.com/callstack/react-native-testing-library): Simple and complete React Native testing utilities that encourage good testing practices (18M+ downloads/mo, 3k+ stars) - [React Native Community CLI](https://github.com/react-native-community/cli): Command line tools to help you build React Native apps (13M+ downloads/mo, 2k+ stars) - [React Native Slider](https://github.com/callstack/react-native-slider): React Native component exposing Slider from iOS and SeekBar from Android (5M+ downloads/mo, 1k+ stars) - [React Native Pager View](https://github.com/callstack/react-native-pager-view): React Native wrapper for the Android ViewPager and iOS UIPageViewController (5M+ downloads/mo, 3k+ stars) - [React Native Paper](https://github.com/callstack/react-native-paper): Material Design for React Native (Android & iOS) (1M+ downloads/mo, 14k+ stars) - [React Native Builder Bob](https://github.com/callstack/react-native-builder-bob): Simple set of CLIs to scaffold and build React Native libraries for different targets (1M+ downloads/mo, 3k+ stars) - [Agent Device](https://github.com/callstackincubator/agent-device): CLI to control iOS and Android devices for AI agents (980k+ downloads/mo, 4k+ stars) - [Rozenite](https://github.com/callstackincubator/rozenite): Plug-and-play panels for React Native DevTools. Install, enable, and start debugging in minutes. (959k+ downloads/mo, 663 stars) - [Liquid Glass](https://github.com/callstack/liquid-glass): iOS Liquid Glass in React Native (539k+ downloads/mo, 1k+ stars) - [React Native Bottom Tabs](https://github.com/callstackincubator/react-native-bottom-tabs): Native Bottom Tabs for React Native (408k+ downloads/mo, 1k+ stars) - [React Native AI](https://github.com/callstackincubator/ai): On-device LLM execution in React Native with Vercel AI SDK compatibility (227k+ downloads/mo, 1k+ stars) - [React Navigation](https://github.com/react-navigation/react-navigation): Routing and navigation for your React Native apps (218k+ downloads/mo, 24k+ stars) - [React Native Harness](https://github.com/callstackincubator/react-native-harness): Harness brings Jest-style tests to real native environments so you can test TurboModules like you would test your React Native app: with JavaScript. (179k+ downloads/mo, 332 stars) - [Agent React DevTools](https://github.com/callstackincubator/agent-react-devtools): Gives AI agents access to React DevTools (151k+ downloads/mo, 251 stars) - [React Native Legal](https://github.com/callstackincubator/react-native-legal): Automagically generate license acknowledgements for your React Native app & any JS project (139k+ downloads/mo, 362 stars) - [React Native Brownfield](https://github.com/callstack/react-native-brownfield): Incrementally move your iOS and Android apps to React Native without breaking (94k+ downloads/mo, 552 stars) - [Voltra](https://github.com/callstackincubator/voltra): Voltra lets React Native developers build native iOS Live Activities, Dynamic Island layouts, and widgets as React components without writing Swift. (88k+ downloads/mo, 844 stars) - [Linaria](https://github.com/callstack/linaria): Zero-runtime CSS in JS library (29k+ downloads/mo, 12k+ stars) - [React Native Vision OS](https://github.com/callstack/react-native-visionos): A framework for building native visionOS applications using React Native (15k+ downloads/mo, 1k+ stars) - [React Native Sandbox](https://github.com/callstackincubator/react-native-sandbox): Run multiple, isolated React Native instances within a single application (15k+ downloads/mo, 220 stars) - [Skill Gym](https://github.com/callstackincubator/skillgym): Prove your agent skills work before you ship them (1k+ downloads/mo, 66 stars) - [Agent Skills](https://github.com/callstackincubator/agent-skills): Callstack’s best practices on React Native performance optimization, upgrading, CI workflows, and brownfield migrations (1k+ stars) - [React Native Evals](https://github.com/callstackincubator/evals): A benchmark suite for evaluating how coding models solve real React Native tasks (111 stars) - [Apex](): Agentic coding model for mobile and web Agentic Delivery ## Turn AI into better software delivery. From redesigning development workflows to building custom agents, testing their output, and choosing the right models, we turn AI into a practical part of product delivery. [Agentic Delivery](https://www.callstack.com/agentic-delivery) · [Book consultation](https://www.callstack.com/contact) - [AI SDLC Advisory](https://www.callstack.com/capabilities/ai-sdlc-advisory) - [AI-Driven QA & Testing](https://www.callstack.com/capabilities/ai-driven-qa-testing) - [Custom Agents](https://www.callstack.com/capabilities/custom-agents) - [Custom & Private Models](https://www.callstack.com/capabilities/custom-private-models) Events ## Meet the engineers behind the work. Join talks, workshops, and live sessions from the people building React Native, open source tools, and AI-native delivery workflows. [Explore Events](https://www.callstack.com/events) - [Efficient On-Device LLMs in React Native Done Right](https://www.callstack.com/events/efficient-on-device-llms-in-react-native-done-right) (New York, United States) - [On-Device AI After WWDC: What Changed for React Native](https://www.callstack.com/events/on-device-ai-after-wwdc-what-changed-for-react-native) (New York, United States) - [Beyond Coding Agents: Making ADLC Work Across Platforms](https://www.callstack.com/events/beyond-coding-agents-making-adlc-work-across-platforms) (New York, United States) discord ## Talk agents, apps, and open source. Join the Callstack Discord to discuss React Native, AI-native workflows, agent tooling, bugs, ideas, and contributions. [Join Callstack Discord](https://discord.gg/dmDkGFNj9k)