quicktype infers types from sample JSON data, then outputs strongly typed models and serializers for working with that data in Swift, Objective-C, C++, and more. This extension adds native quicktype support to Xcode 9.

Try quicktype in your browser at

What's New

Version 8.2.22

• Includes full quicktype app experience for more language options.
• Improved memory management attributes for Objective-C properties.
• Fixes all known Objective-C compiler warnings.

Ratings and Reviews

4.9 out of 5
19 Ratings
19 Ratings

The kind of tool that ends up being NECESSARY


Coding is 10% raw talent and new ideas, and 90% slogging through the tedium, trying not to cut and paste hacked-together crap from StackOverflow. This kind of tool is what you need to help smooth out the tedium, and help free up time to turn that 10% into more like 20 or 30%! I love the way the app stays focused on its job, does it well, and has *just* enough options to give the coder real-world flexibility, while not becoming its own kind of tedium. Well done! This is one of those coding tools you didn’t even know you needed in your toolbox. #hugefan

Thank You!


I used your website for this and the fact that you have an app that I can use off line…. Thank you. this saves me a HUGE amount of effort and time. I wish I could give you more than 5 stars for this.

One of the best tools for JSON

Arnav the Great 01000001

I normally don't review applications, but this app is great. I find it very easy to use JSON now thanks to the simplicity of this program. I highly recommend this to anyone who uses JSON.


David Siegel
4.5 MB
Developer Tools
macOS 10.12 or later, 64-bit processor
Age Rating
Rated 4+
© typeguard, Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer