waifu2x 4+

Enhance Image & Video Quality

宜 谢

    • 4.7 • 81 Ratings
    • Free
    • Offers In-App Purchases

Description

This is macOS version of the iOS app waifu2x.

This app can scale and/or denoise images, GIFs and videos using various advanced on-device AI algorithms. Note that this app is not affiliated with the original waifu2x project.

Privacy is one of the top priorities of this app. Your images and videos will never leave your device to be processed. Additionally, we don't collect any personal information because there are no ADs even if you only use free models. Therefore, if you encounter any problems, please send us a feedback email or create a GitHub issue so that we can work together to fix them.

Try additional models and custom models on your own images for free before you purchase!

macOS exclusive features:
1. Command line interface (CLI) support.
2. Advanced video processing via CLI.
3. Accelerate batch processing using multiple GPUs and ANE in parallel (advanced mode required). All models except for CUnet are supported.

Highlight features:
1. Unlimited number of imported images, GIFs and videos.
2. Supports both SRCNN and CUnet models from the original waifu2x project.
3. Supports Real-ESRGAN models for both illustrations and photos.
4. Supports Real-CUGAN models for anime illustrations. Also supports customizable intensity.
5. Supports Anime4K models for anime videos.
6. Supports custom Core ML models. Import any model to process images for your specific needs.
7. Custom scale modes. You have options to scale images up to 128x, 1.5x, fixed size and more.
8. Supports multiple ways of importing images and videos: the album, files, folders, drag and drop, other apps, Shortcuts.
9. Supports images with alpha channel.
10. Multiple output formats: PNG, JPEG, HEIF, WebP, MP4, MOV, GIF, APNG, AWebP.
11. Multiple processing backends. You can choose between highest quality or highest speed.
12. Write output images and videos directly to an external path (including network drives like SMB).
13. End-to-end support for 16-bit color and color spaces. Color accuracy will not be compromised after processing.
14. Highly optimized RAM usage. You can easily produce images that don't even fit inside your device RAM.
15. Supports deleting or replacing original images and videos if they come from the album.
16. Supports downscaling images before processing, which is useful while processing some photos.

SRCNN and CUnet models are converted from waifu2x-caffe.

All the models are running on device, so it doesn't need to upload images or videos to any server.

Source code of core function is available on GitHub:
https://github.com/imxieyi/waifu2x-ios

Usage of images in screenshots is granted by the original author Kurumi:
https://twitter.com/0115_kurumi

The primary app icon is illustrated by Kapuru:
https://twitter.com/KaPuRu_0410

What’s New

Version 7.2.10

Workaround for crash on macOS 15 when using some custom models.

Ratings and Reviews

4.7 out of 5
81 Ratings

81 Ratings

Max_- ,

The OG anime biggerizer we all needed!

I remember ios 6 when it was a pain to just browse our waifus but now we can upscale our H on our phone to 32k for no reason?! YES PLEASE! Don’t be depressed fellow weebs one day you’ll have a job to pay your favorite artist that phat $$$$ but for now you can upscale her to what res with where shame??

On a serious note the app is great wothout giving users too many controls while still giving some flexibility, even more “casual icons” for the closet weebs. For the dojin readers a folder feature is available 😉😮‍💨 that alone is worth money if you ask me 😅😳

Thank you for making this dev <3

Ryan C Val ,

Model Loading Time Problems

I have been using Waifu2x in IOS for years now with its latest updates and the various improved scaler models but never I had any issues before of literally waiting for them to even start processing the image file regardless of what resolution it is up until just recently. Whenever I refresh the app or turn on my moderately powerful hardware iPhone, it always loads the chosen models first every single time. The main issue is that it takes over a minute just to finish loading a model. I have been using practically the same exact settings before and after I upgraded to a new phone yet it doesn’t make a dent in the annoying long loading times.

It’s not something that brakes the app for its main purpose on what is trying to do but hopefully, this will get patched soon and it’ll make it easier for us to not wait this long to change even over a single image/video than it should. Around five-second load times when choosing a model at least would be very much tolerable regardless that the software app didn’t have any loading times before I made this review.

Developer Response ,

It’s a technical limitation. The newer models are too large. If you are using an old device it will take a long time for iOS to load them. On an iOS device released recently it should take less than 5 seconds. Nothing can be done in the app as the model loading is handled by iOS.

Dave804 ,

Needs Work

This MacOS app does the basic functions as expected however there is no information on how to upgrade or how get the full version despite the app clearly stating that upgrade as possible and that it will remove the "trial "labeling to provide full feature set.
***In the developer response, they state there is no full version yet in their very own app it's littered with gold lettered "trial" badges on different options and there's literally a paragraph description claiming that you have to upgrade to get the full version. So clearly this developer doesn't even know what's in his own app!! In addition reviewing an app it's not complaining. It's called a reviewing. Perhaps being less offended and more knowledgeable about your own app would benefit you greatly and provide a better product for users.

Developer Response ,

There is no such thing as “full version” in this app. Therefore no “upgrade” here. Are you looking for another app that has nothing to do with this one?

Update: Well I know there is another very similar app which DOES have a “full version”. This app only have an unlockable item. I thought you mean that app instead of this one. If you would bother sending a feedback email instead of complaining on the App Store I’d even be happy to send you a video tutorial.

App Privacy

The developer, 宜 谢, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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