A high-performance, easy-to-use GIF engine for iOS and macOS built with Swift extensions for UIImage and UIImageView.
SwiftyGif is a Swift library that provides a high-performance engine for displaying and controlling GIF animations in iOS and macOS apps. It solves the problem of efficiently rendering GIFs with minimal CPU and memory overhead by extending UIKit's UIImage and UIImageView classes. Developers can load local or remote GIFs, manage playback, and fine-tune performance settings.
iOS and macOS developers who need to integrate animated GIFs into their applications, particularly those using UIKit or SwiftUI and looking for a performant, easy-to-use solution.
Developers choose SwiftyGif for its excellent performance benchmarks, familiar UIKit-based API, and granular control over CPU/memory usage. It outperforms alternatives like FLAnimatedImage in CPU efficiency while offering features like remote loading, SwiftUI support, and customizable performance tuning.
High performance GIF engine
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Benchmarks in the README show SwiftyGif uses only 2% CPU for single GIF display vs. FLAnimatedImage's 35%, making it highly efficient for performance-sensitive apps.
Extends UIImage and UIImageView with familiar APIs, allowing easy adoption in existing UIKit projects without learning new components, as shown in the quick start examples.
Offers memoryLimit and levelOfIntegrity settings to fine-tune CPU and memory trade-offs, demonstrated in the benchmark tables for optimizing multi-GIF scenarios.
Can load GIFs from URLs with customizable loaders, enabling dynamic content integration without manual download handling, as illustrated in the remote GIFs section.
Default settings consume more memory (18.4MB vs. 9.5MB for FLAnimatedImage per README benchmarks), which could strain memory-constrained devices or apps with many GIFs.
Limited to the GIF format, lacking built-in support for other animated image formats like APNG or WebP, requiring additional libraries for broader compatibility.
The provided UIViewRepresentable is minimal and may need extra work for advanced SwiftUI features, such as proper state management or animation coordination, as noted in the example.