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 projectsBook consultation
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.
Project
Function
Downloads/mo
Stars
Reassure
Performance testing companion for React and React Native
583k+
1k+
Re.Pack
A webpack-based toolkit to build your React Native application with full support of webpack ecosystem
2M+
1k+
Rock
Modular toolkit for teams building React Native apps
38k+
700
React Native Testing Library
Simple and complete React Native testing utilities that encourage good testing practices
18M+
3k+
React Native Community CLI
Command line tools to help you build React Native apps
13M+
2k+
React Native Slider
React Native component exposing Slider from iOS and SeekBar from Android
5M+
1k+
React Native Pager View
React Native wrapper for the Android ViewPager and iOS UIPageViewController
5M+
3k+
React Native Paper
Material Design for React Native (Android & iOS)
1M+
14k+
React Native Builder Bob
Simple set of CLIs to scaffold and build React Native libraries for different targets
1M+
3k+
Agent Device
CLI to control iOS and Android devices for AI agents
980k+
4k+
Rozenite
Plug-and-play panels for React Native DevTools. Install, enable, and start debugging in minutes.
959k+
663
Liquid Glass
iOS Liquid Glass in React Native
539k+
1k+
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 DeliveryBook consultation
AI SDLC Advisory
AI-Driven QA & Testing
Custom Agents
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
Insight Page
Talk
New York, United States

Efficient On-Device LLMs in React Native Done Right

Artur Morys-Magiera will cover efficient on-device LLMs in React Native, including runtimes, model selection, quantization, and platform constraints.
Insight Page
Talk
New York, United States

On-Device AI After WWDC: What Changed for React Native

Mike Grabowski will explain what changed for system-provided on-device AI after WWDC and what React Native developers can build with it.
Insight Page
Talk
New York, United States

Beyond Coding Agents: Making ADLC Work Across Platforms

Mike Grabowski will explain how to close the full agentic development lifecycle across mobile, web, and native platforms.
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