waifu2x 7.2.7

宜谢 ❘ Freeware ❘
iOS
out of 881 votes

Enhance Your Art with Waifu2x: The AI Upscaler That's Done Right

Pete Milner

03/07/2025

Waifu2x is a powerful AI image upscaling tool that intelligently enhances artwork while preserving quality and reducing noise, making it a favorite among digital artists and anime fans.

This app offers advanced on-device AI algorithms to scale and denoise images. It should be noted that this app is not affiliated with the original waifu2x project.

Privacy is a top priority for this app. All image processing occurs locally on your device, and your files are never sent elsewhere for processing. Furthermore, no personal information is collected, even if you choose to use the free models. If you experience any issues, please reach out to us via feedback email or create a GitHub issue so that we can address them together.

Before making a purchase, you can try out additional models and custom models on your own images free of charge!

Key Features:

Import an unlimited number of images.
Supports both SRCNN and CUnet models from the original waifu2x project.
Offers Real-ESRGAN models for illustrations and photos.
Provides support for Real-CUGAN models for anime illustrations, with customizable intensity.
Supports Anime4K models for anime videos.
Allows importing custom Core ML models to process images based on specific needs.
Customize scale modes with options to scale images up to 128x, 1.5x, fixed size, and more.
Different ways to import images: from the album, files, folders, drag and drop, other apps, or through Shortcuts.
Supports images with an alpha channel.
Output images in various formats: PNG, JPEG, HEIF, WebP.
Select from multiple processing backends for either highest quality or highest speed.
Write output images directly to an external path, including network drives like SMB.
Ensures end-to-end support for 16-bit color and color spaces, without compromising color accuracy.
Optimized RAM usage to handle images that surpass the device's available RAM.
Allows deleting or replacing original images if they are sourced from the album.
Supports downscaling images before processing, which is particularly useful for certain types of photos.

The source code for the core function is available on GitHub: https://github.com/imxieyi/waifu2x-ios

The usage of images in the screenshots has been granted by the original author Kurumi: https://twitter.com/0115_kurumi

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

Overview

waifu2x is a Freeware software in the category Graphics Applications developed by 宜谢.

The latest version of waifu2x is 7.2.7, released on 07/04/2024. It was initially added to our database on 10/22/2023.

waifu2x runs on the following operating systems: iOS.

Users of waifu2x gave it a rating of 5 out of 5 stars.

FAQ

What is waifu2x?

Waifu2x is an image upscaling and noise reduction tool that uses deep convolutional neural networks (CNN) to enhance images, particularly anime-style artwork.

Who developed waifu2x?

Waifu2x was developed by a Taiwanese programmer known by the alias '宜谢'.

What types of images can waifu2x process?

Waifu2x is particularly designed for anime-style images but can also process photos and other types of artwork.

Is waifu2x a free tool?

Yes, waifu2x is open-source and free to use.

How do I use waifu2x?

To use waifu2x, you simply upload your image on the website or use the app, select the desired scaling amount and noise reduction level, and then download the enhanced image.

What are the benefits of using waifu2x?

The main benefits include high-quality image upscaling without significant loss of detail and effective noise reduction for cleaner visuals.

Can waifu2x be used for video enhancement?

No, waifu2x is specifically designed for still images and does not work on videos directly.

Is there a limit to the image size I can upload to waifu2x?

Yes, there may be size limits depending on the specific implementation of waifu2x you are using, often around 5 MB per image.

Does waifu2x require any special hardware to use?

No special hardware is required; it can run on standard computers as long as you have access to the software or a web-based interface.

Are there alternative tools similar to waifu2x?

Yes, there are alternative tools such as AI Gigapixel and LetsEnhance that offer similar features for image enhancement.

Pete Milner

I'm Pete, a software reviewer at UpdateStar with a passion for the ever-evolving world of technology. My background in engineering gives me a unique insight into the intricacies of software, allowing me to provide in-depth, knowledgeable reviews and analyses. Whether it's the newest software releases, tech innovations, or the latest trends, I'm here to break it all down for you. I work from UpdateStar’s Berlin main office.

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