Build high-performance desktop apps for macOS and Windows
We help product teams build native-feeling desktop apps for Windows and macOS that look great, perform reliably, and ship from a single codebase—backed by the same tech powering tools from Microsoft and Meta.
Why teams build desktop apps with React
Using a shared React foundation, you can build apps that feel native on every desktop OS—while keeping logic, design systems, and workflows consistent with your mobile and web products.
Native UX
Deliver keyboard-friendly layouts, desktop-level navigation, and OS-specific behavior on both Windows and macOS.
Native UX
Deliver keyboard-friendly layouts, desktop-level navigation, and OS-specific behavior on both Windows and macOS.
Shared foundation with web/mobile
Use the same logic, components, and design system across platforms to simplify delivery and reduce inconsistencies.
Shared foundation with web/mobile
Use the same logic, components, and design system across platforms to simplify delivery and reduce inconsistencies.
Trusted by industry leaders
This approach powers major apps like Visual Studio Code, Messenger, Slack, and Microsoft Teams—at scale.
Trusted by industry leaders
This approach powers major apps like Visual Studio Code, Messenger, Slack, and Microsoft Teams—at scale.
React Native for Desktop is used by industry leaders and product teams worldwide
React Native for Desktop is powering mission-critical apps at companies like Microsoft, Meta, and Mashreq—spanning experiences from Xbox to Office, Messenger to banking tools. These teams are using a shared stack to deliver native-quality desktop apps at scale, across both Windows and macOS.
Desktop app that feels native—because it is
Not a port of mobile or web, but a true desktop experience—built to feel at home on every OS while sharing logic and infrastructure with the rest of your product.
Desktop-ready interface
Keyboard-first workflows, native window behavior, and high-density layouts—optimized for real desktop usage.
Full OS integration
Behaves like a true desktop app—supporting file access, notifications, deep linking, clipboard, and other system-level features.
Reliable performance at scale
Tuned render paths, startup time, and memory usage—built to stay smooth with large data sets and complex UIs.
Automated delivery
Installers, auto-updates, crash reporting, and platform-specific packaging—ready for release on macOS and Windows.
Shared codebase
Single codebase using React Native or React with Electron—maintainable across desktop, mobile, and web.
Owned by your team
Built with handoff in mind—clear structure, documentation, and naming conventions so your team can take full ownership.
Learn how React Native powers modern desktop experiences at scale
At Microsoft, React Native is used across critical Windows and macOS applications—from Office collaboration features to system-level UI in Windows 11. This talk shows how React Native enables teams to reuse code, deliver platform-consistent UX, integrate with native modules, and scale products to hundreds of millions of users without compromising performance or maintainability.
Get a production-ready desktop app for macOS and Windows
Build a new desktop app
From discovery to release, we build modern desktop apps that feel fast, look great, and support Windows and macOS out of the box.
Bring an existing app to desktop
We help you adapt your mobile or web product to desktop with a shared codebase and platform-appropriate UX.
Integrate OS-level features
We add support for file access, deep linking, notifications, menu bars, and other system-native behaviors.
Optimize performance and stability
We tune memory usage, startup speed, and UI performance for smooth, responsive desktop experiences.
Why leading companies work with Callstack
Meta Official Partners
We are official Meta partner for React Native, co-organizers of React Conf and hosts of React Universe Conf.
Working at scale
We know how to make React Native work at enterprise scale, both technically and organizationally.
React Native Core Contributors
We don’t just use React Native to build cross-platform apps, we help shape it for millions of developers.
Team at scale
We’re a team of 200+ engineers ready to start fast and scale with your needs.
Enterprise-friendly
We hold ISO certifications and follow strict security standards to make onboarding smooth and compliant.
Wide range of services
As a partner for your full application lifecycle, we offer a full range of services around React and React Native.
FAQs
Developing desktop apps with React Native comes with unique questions—from how much code you can share to how native the experience can feel. These are the ones we hear most often.
Yes. With full support for Windows and macOS, React Native can deliver desktop apps that feel native—because they are.
Yes. We use platform-specific extensions where needed, but most of your business logic and UI can be shared across both.
Absolutely. We specialize in setting up shared codebases across mobile, web, and desktop, maximizing reuse while respecting platform boundaries.
Yes. We handle brownfield setups, allowing you to incrementally adopt React Native within an existing desktop codebase.
We handle all the details—from focus management to multi-window handling—so your app behaves exactly like users expect.
Yes. We support building for the Microsoft Store and Mac App Store, including code signing, notarization, and installer setup.
Need a partner to build or scale your desktop app?
We help product and engineering teams deliver desktop apps that feel native, scale across platforms, and share code efficiently—without compromising on performance or user experience.
