--- title: Running Multiple Instances of React Native in Sandbox description: react-native-sandbox is a new library from Callstack that enables running multiple fully isolated React Native instances within a single application. Each... canonical: https://daily.dev/posts/running-multiple-instances-of-react-native-in-sandbox-3xdkxbook twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Running Multiple Instances of React Native in Sandbox | daily.dev og:description: react-native-sandbox is a new library from Callstack that enables running multiple fully isolated React Native instances within a single application. Each... og:url: https://daily.dev/posts/running-multiple-instances-of-react-native-in-sandbox-3xdkxbook og:image: https://api.daily.dev/og/posts/3XdKxBOOK.png og:image:alt: Running Multiple Instances of React Native in Sandbox og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Running Multiple Instances of React Native in Sandbox **[Callstack Blog](https://daily.dev/sources/callstack-blog)** · 6 min read · 0 upvotes · 0 comments ## Summary react-native-sandbox is a new library from Callstack that enables running multiple fully isolated React Native instances within a single application. Each sandbox runs in its own JavaScript runtime, providing true isolation, crash containment, and configurable permissions via a TurboModule whitelist. The library exposes a SandboxReactNativeView component and a postMessage-style API for secure host-sandbox communication. Currently iOS-only, it targets super app architectures where third-party or multi-team code must be safely integrated without risking the host app's stability. First-class Re.Pack integration is planned for a future release. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Using TurboModule Substitution to Build Safer React Native Plugin Systems](https://daily.dev/posts/using-turbomodule-substitution-to-build-safer-react-native-plugin-systems-ly1horxpu) · Callstack Blog · 0 upvotes · 0 comments - [Working With the React Native Super App Showcase Repository](https://daily.dev/posts/working-with-the-react-native-super-app-showcase-repository-5ciobo8b6) · Callstack Blog · 0 upvotes · 0 comments - [Super App Development Services](https://daily.dev/posts/super-app-development-services-cot5v1rgr) · Callstack Blog · 0 upvotes · 0 comments --- Tags: [#react-native](https://daily.dev/tags/react-native) [View this post on daily.dev](https://daily.dev/posts/running-multiple-instances-of-react-native-in-sandbox-3xdkxbook) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Running Multiple Instances of React Native in Sandbox","url":"https://daily.dev/posts/running-multiple-instances-of-react-native-in-sandbox-3xdkxbook","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/running-multiple-instances-of-react-native-in-sandbox-3xdkxbook"},"datePublished":"2026-03-22T11:30:58.542Z","dateModified":"2026-08-24T06:53:36.598Z","description":"react-native-sandbox is a new library from Callstack that enables running multiple fully isolated React Native instances within a single application. 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