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Java to iOS Objective-C translation tool and runtime used by Google Inbox to share 70% of its code across Android, iOS, and Web
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What is J2ObjC?

J2ObjC is an open-source command-line tool from Google that translates Java code to Objective-C for the iOS (iPhone/iPad) platform. This tool enables Java code to be part of an iOS application's build, as no editing of the generated files is necessary. The goal is to write an app's non-UI code (such as data access, or application logic) in Java, which is then shared by web apps (using GWT), Android apps, and iOS apps.
J2ObjC is a tool in the Cross-Platform Mobile Development category of a tech stack.
J2ObjC is an open source tool with 5.6K GitHub stars and 794 GitHub forks. Here鈥檚 a link to J2ObjC's open source repository on GitHub

Who uses J2ObjC?

4 companies reportedly use J2ObjC in their tech stacks, including Square, Inbox by Gmail, and Undisclosed.


J2ObjC Integrations

Why developers like J2ObjC?

Here鈥檚 a list of reasons why companies and developers use J2ObjC
J2ObjC Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose J2ObjC in their tech stack.

David Klotz
David Klotz
Software Engineer | 1 upvotes 1K views
atfileee GmbHfileee GmbH

We use J2Objc and GWT to provide a shared library of cross-platform code that is used on all our client platforms (Android, iOS and the web) and even in the backend. J2ObjC

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J2ObjC Alternatives & Comparisons

What are some alternatives to J2ObjC?
React Native
React Native enables you to build world-class application experiences on native platforms using a consistent developer experience based on JavaScript and React. The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native.
Free and open source, Ionic offers a library of mobile and desktop-optimized HTML, CSS and JS components for building highly interactive apps. Use with Angular, React, Vue, or plain JavaScript.
Xamarin鈥檚 Mono-based products enable .NET developers to use their existing code, libraries and tools (including Visual Studio*), as well as skills in .NET and the C# programming language, to create mobile applications for the industry鈥檚 most widely-used mobile devices, including Android-based smartphones and tablets, iPhone, iPad and iPod Touch.
Flutter is a mobile app SDK to help developers and designers build modern mobile apps for iOS and Android.
Apache Cordova
Apache Cordova is a set of device APIs that allow a mobile app developer to access native device function such as the camera or accelerometer from JavaScript. Combined with a UI framework such as jQuery Mobile or Dojo Mobile or Sencha Touch, this allows a smartphone app to be developed with just HTML, CSS, and JavaScript.
See all alternatives

J2ObjC's Followers
14 developers follow J2ObjC to keep up with related blogs and decisions.
John Alton
Mohamed Shaheen
Jon Gilbert
Jonathan Au
Rudy Luna