What is WebP?
WebP is a modern image format developed by Google that provides superior lossless and lossy compression for web images, producing files 25-35% smaller than comparable JPG or PNG files.
What is it?
WebP is a modern image format developed by Google in 2010, designed specifically for the web. It uses advanced compression techniques derived from the VP8 video codec to achieve significantly smaller file sizes than JPG and PNG without visible quality loss.
WebP supports both lossy and lossless compression, as well as transparency (alpha channel) and animation - making it a versatile replacement for JPG, PNG, and GIF in web contexts.
Technical Specifications
Pros & Cons
Advantages
25-35% smaller than JPG at equivalent quality, and 26% smaller than PNG for lossless images.
Full alpha channel like PNG, but with much smaller file sizes.
Can replace animated GIFs with far smaller file sizes.
Supported by all modern browsers including Chrome, Firefox, Safari, and Edge.
Disadvantages
Older image editors and desktop software may not open WebP natively.
Windows and macOS require additional codecs to preview WebP in file explorers.
Designed for screens - not used in professional print workflows.
Some legacy systems and older browsers do not support it.
When to Use It
WebP is the best choice for web images where performance and load speed matter.
Web Performance
Smaller images mean faster page loads and better Core Web Vitals scores.
E-commerce Images
Product photos load faster without sacrificing the visual quality shoppers expect.
Web Apps
Ideal for user-uploaded images and any web application where bandwidth matters.
Replacing GIF Animations
Animated WebP files are typically 64% smaller than equivalent GIFs.
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Is WebP better than JPG?
For web use, yes. WebP produces 25-35% smaller files at the same visual quality. However, JPG has broader software support and is still preferred for photography workflows.
Does Safari support WebP?
Yes. Safari added full WebP support in version 14 (2020). All modern browsers now support WebP.
Can WebP replace both JPG and PNG?
Yes, WebP can handle both use cases - lossy compression for photos (replacing JPG) and lossless with transparency (replacing PNG) - while producing smaller files in both cases.
How do I open a WebP file?
Most modern browsers open WebP directly. For desktop use, update your OS image viewer or use image editing software like Photoshop (with a plugin) or GIMP.
Should I convert my website images to WebP?
Yes, if web performance is a priority. Serving WebP to supporting browsers and JPG/PNG as a fallback for older browsers is considered best practice.