★ Formerly Unretina / Unretiner, this is the original, and most popular resize app for developers! (Name changed at Apple's request).

Develop iOS apps? Easily resize your @2x or -hd cocos2d images in seconds! Great for testing out non retina devices before the big painful export from Photoshop.

Supports .png .jpg .tif and .bmp.

To use simply drag @2x or -hd named images (or a folder containing the images) onto the application, choose an output folder and you are done!

Remember that Resizer is great for some images, but nothing beats recreation.

We've had some great requests for features for Version 2:
* AppleScript Support (Automatically convert a folder when files appear)
* Sharpness Filter
* Other (better quality) scaling methods
* Drop files onto icon
* Settings to default to same folder and hide the message box.

Let us know what you'd like to see!

For more kickass apps and tips for developers, follow @Bonobo on Twitter.

What’s New

Version 1.4

Lion / Mountain Lion Support
Name changed from Unretina/Unretiner to Resizer.

Ratings and Reviews

2.7 out of 5
3 Ratings

3 Ratings

trici_33 ,

almost there

great app, very handy for any iOS dev.

however, have noticed that for some images the color changes slightly, and this can be an issue when trying to color match on devices. what mode is it saving in?

Womblton ,

Very usefull

This is a big time saver. If it could convert -ipadhd to -ipad -hd and standard it would get the extra star. MIght need a setting dialoag for that but it would be very handy

Alex19374 ,

Good for quick prototyping, but not good for production.

This app does exactly what it says and I think it's a good idea during UI prototyping/testing phases, but for production developers really should make artwork specific to each resolution.

App Privacy

The developer, Bonobo Labs, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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