A pure Go WebP encoder with no external dependencies, offering faster encoding and smaller file sizes than PNG.
Native WebP for Go is a pure Go library for encoding WebP images without external dependencies like libwebp. It provides lossless WebP encoding that generates smaller file sizes and offers faster performance compared to the standard Go PNG encoder. The project also includes support for encoding WebP animations and provides a wrapper for decoding WebP images.
Go developers who need to encode WebP images efficiently within their applications, particularly those prioritizing dependency-free, portable solutions and performance improvements over PNG. It's also suitable for developers working on image processing pipelines or applications requiring WebP animation support.
Developers choose this library because it offers a pure Go implementation with no external dependencies, ensuring easy integration and portability. It delivers superior compression and faster encoding times compared to standard Go PNG encoding, making it an efficient alternative for lossless WebP image generation.
Native webp encoder for Go
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Pure Go implementation with no external C dependencies like libwebp, ensuring easy integration and cross-platform compatibility, as highlighted in the README's philosophy.
Generates 12–23% smaller file sizes than Go's PNG encoder with BestCompression, based on benchmark data from Google's WebP gallery images.
Benchmarks show approximately 50% faster encoding times compared to PNG, making it efficient for lossless WebP generation in Go applications.
Encodes WebP animations with configurable frames, durations, loop counts, and background colors, as demonstrated in the usage example for EncodeAll.
Supports only WebP lossless images (VP8L), excluding lossy compression which is a key WebP feature for many use cases like web optimization.
Decoding relies on a wrapper around golang.org/x/image/webp, not a full native implementation, which may introduce compatibility issues or limit control over decoding features.
Performance claims are only versus PNG, not against other WebP encoders like libwebp, so real-world efficiency relative to alternatives is unclear.