Important: if you don't see the “Xcode Source Editor” menu item under System Preferences -> Extensions, this is most likely due to a corrupt installation of the Xcode itself.
If this happens, reinstall both Xcode and Swiftify from the AppStore.
Email if the issue persists.

Visit to get your free API key.

Swiftify Xcode Extension allows converting your Objective-C code to Swift 4.2 or 4.1 right in Xcode.
The app includes Xcode & Finder extensions and the Advanced Project Converter app best suited for gradual project migration.

To install Swiftify for Xcode in Xcode 10 (or Xcode 9) on macOS Mojave (or High Sierra):
• Quit Xcode;
• Launch “Swiftify for Xcode” from your Applications folder and follow the link to get your API key (if you leave it blank, the output will be limited to 1 KB);
• Enable Swiftify extension in System Preferences -> Extensions -> Xcode Source Editor;
• Restart Xcode;
• Use Editor -> Swiftify menu to convert selection, whole file or clipboard contents from Objective-C to Swift.

The converted code is transferred over an encrypted HTTPS connection and is NEVER stored on our servers!

If you are interested in the offline version with a similar functionality, it's also available at

Swift and Xcode are trademarks of Apple Inc., registered in the U.S. and other countries.
Swiftify ( is not affiliated with Apple, Inc.

What’s New

Version 5.0

Added support for Swift 5.
Now you can switch between the Swift 5 and Swift 4.2 outputs in the Preferences dialog.

Ratings and Reviews

4.0 out of 5
1 Rating
1 Rating
Jpba1984 ,

Must have

If you are dealing with great amounts of legacy code, this is a time saver, the actual state of the product is very good with syntax, but might need more improvement on the whole Objective-c to Swift paradigm, anyway i understand that is difficult to do without a human or advanced AI, the parser is doing a great job under the hood anyway. The support is very fast and service options are fair enough.

Tip: start with small amounts of code to see how it behaves.



Oleksii Petushchak
51.1 MB
Developer Tools

macOS 10.12 or later, 64-bit processor



Age Rating
Rated 4+
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  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.