CI Status Version License Platform Carthage compatible

Starting with the SDWebImage 5.0 version, we moved the WebP support code and libwebp from the Core Repo to this stand-alone repo.

SDWebImageWebPCoder supports both WebP decoding and encoding, for Static WebP or Animated WebP as well.


  • iOS 8
  • macOS 10.10
  • tvOS 9.0
  • watchOS 2.0



SDWebImageWebPCoder is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'SDWebImageWebPCoder'


SDWebImageWebPCoder is available through Carthage.

github "SDWebImage/SDWebImageWebPCoder"


Add Coder

Before using SDWebImage to load WebP images, you need to register the WebP Coder to your coders manager. This step is recommended to be done after your App launch (like AppDelegate method).

  • Objective-C
// Add coder
SDImageWebPCoder *webPCoder = [SDImageWebPCoder sharedCoder];
[[SDImageCodersManager sharedManager] addCoder:webPCoder];
  • Swift
// Add coder
let WebPCoder = SDImageWebPCoder.shared

Modify HTTP Accept Header

Some of image server provider may try to detect the client supported format, by default, SDWebImage use image/*,*/*;q=0.8 for Accept. You can modify it with the image/webp as well.

  • Objective-C
[[SDWebImageDownloader sharedDownloader] setValue:@"image/webp,image/*,*/*;q=0.8" forHTTPHeaderField:@"Accept"];
  • Swift
SDWebImageDownloader.shared.setValue("image/webp,image/*,*/*;q=0.8", forHTTPHeaderField:"Accept")


  • Objective-C
// WebP image loading
UIImageView *imageView;
[imageView sd_setImageWithURL:webpURL];
  • Swift
// WebP online image loading
let webpURL: URL
let imageView: UIImageView
imageView.sd_setImage(with: webpURL)


  • Objective-C
// WebP image decoding
NSData *webpData;
UIImage *image = [[SDImageWebPCoder sharedCoder] decodedImageWithData:webpData options:nil];
  • Swift
// WebP image decoding
let webpData: Data
let image = SDImageWebPCoder.shared.decodedImage(with: data, options: nil)


  • Objective-c
// WebP image encoding
UIImage *image;
NSData *webpData = [[SDImageWebPCoder sharedCoder] encodedDataWithImage:image format:SDImageFormatWebP options:nil];
  • Swift
// WebP image encoding
let image: UIImage
let webpData = SDImageWebPCoder.shared.encodedData(with: image, format: .webP, options: nil)

See more documentation in SDWebImage Wiki - Coders


To run the example project, clone the repo, and run pod install from the Example directory first.

This is a demo to show how to use WebP and animated WebP images via SDWebImage.


These WebP images are from WebP Gallery and GIF vs APNG vs WebP


Bogdan Poplauschi DreamPiggy


SDWebImageWebPCoder is available under the MIT license. See the LICENSE file for more info.