WebP
Web Picture Format
MIME type: image/webp
WebP is a modern image format developed by Google that provides superior lossless and lossy compression for web images. It supports transparency and animation, making it a versatile replacement for PNG, JPEG, and GIF.
Advantages
- +25-35% smaller than JPEG at same quality
- +Supports transparency (like PNG)
- +Supports animation (like GIF)
- +Supported by all modern browsers
Limitations
- -Not universally supported in older software
- -Lossy mode can produce different artifacts than JPEG
- -Limited support in print workflows
- -Some social media platforms don't accept WebP
Common Use Cases
Technical Details
WebP uses VP8 (lossy) or VP8L (lossless) compression derived from the VP8 video codec. Lossy WebP uses predictive coding similar to VP8 video frames, encoding only the differences between pixel blocks and their predictions. Lossless WebP uses transforms including spatial prediction, color space transform, subtract green transform, and LZ77 backward reference coding.
Frequently Asked Questions
Is WebP better than JPEG?
For web use, yes. WebP produces 25-35% smaller files than JPEG at equivalent visual quality, and it supports transparency. However, JPEG has wider compatibility with older software and print workflows.