SDWebImage is a widely-used library for asynchronous image downloading and caching in iOS and macOS applications. It provides an efficient way to load, display, and cache images from the web, allowing developers to optimize the performance and user experience of their apps.

Key Features

  • Asynchronous image downloading and caching
  • Automatic caching of images
  • Progressive image loading
  • Memory and disk caching support
  • Support for placeholder images
  • Image decoding and scaling
  • Image transformation support
  • Integration with UI elements like UIImageView and UIButton


To use SDWebImage in your iOS or macOS project, you can follow these installation steps:

  1. Open your project in Xcode.
  2. Go to File -> Swift Packages -> Add Package Dependency.
  3. Enter the repository URL:
  4. Select the appropriate version of SDWebImage and click Next.
  5. Choose the target where you want to add SDWebImage and click Finish.
  6. SDWebImage will be added to your project and you can start using it.


To download and display an image using SDWebImage, you can follow these steps:

  1. Import the SDWebImage module:
  2. import SDWebImage
  3. Create an instance of SDWebImageManager:
  4. let manager = SDWebImageManager.shared
  5. Download and display the image using UIImageView:
  6. imageView.sd_setImage(with: URL(string: ""), 
                   completed: nil)


For detailed documentation and usage examples, you can refer to the official SDWebImage GitHub repository.

Community and Support

If you have any questions, feedback, or need support regarding SDWebImage, you can:


SDWebImage is released under the MIT license. See the LICENSE file for more information.