What Is WebP?
WebP is a modern image format developed by Google in 2010. It supports both lossy and lossless compression, plus transparency and animation — effectively combining the capabilities of JPG, PNG, and GIF into a single format. The standout feature is file size: WebP images are typically 25-35% smaller than equivalent JPG files and up to 26% smaller than PNG files.
All modern browsers now support WebP, including Chrome, Firefox, Safari, and Edge. This means you can safely use WebP as your primary image format for web projects, with fallbacks for the rare cases where it’s not supported.
Format Comparison Table
| Feature | JPG | PNG | WebP |
|---|---|---|---|
| Lossy compression | Yes | No | Yes |
| Lossless compression | No | Yes | Yes |
| Transparency | No | Yes | Yes |
| Animation | No | No | Yes |
| Typical file size vs JPG | 100% | 300-500% | 65-75% |
| Browser support | Universal | Universal | All modern browsers |
WebP Advantages
The primary advantage of WebP is superior compression. A photograph saved as WebP at 80% quality is typically 25-30% smaller than the same image as JPG at equivalent visual quality. For PNG images, WebP lossless compression reduces file sizes by roughly 26% on average.
WebP also supports transparency with lossy compression, something neither JPG nor PNG can do. PNG transparency requires lossless compression, resulting in large files. WebP can deliver transparent images at much smaller sizes by applying lossy compression to the color data while preserving the alpha channel.
Animation support means WebP can replace GIF for simple animations, offering significantly better compression and color depth. A WebP animation typically achieves 60-70% smaller files than an equivalent GIF.
When to Use Each Format
For web projects targeting modern browsers, WebP should be your default choice. It delivers the smallest file sizes with full feature support. Use JPG as a fallback for older browsers, and reserve PNG for specific cases where you need maximum compatibility with lossless transparency.
For general use where compatibility is paramount, JPG remains the safest choice for photographs, while PNG is still the most reliable format for graphics requiring transparency across all platforms.
Converting to WebP
Our conversion tool makes switching to WebP straightforward. Upload your existing JPG or PNG images, select WebP as the output format, and download the optimized files. For websites, implement the HTML picture element to serve WebP to supporting browsers while falling back to JPG or PNG for older ones:
<picture>
<source srcset="image.webp" type="image/webp">
<img src="image.jpg" alt="Description">
</picture>Many CDNs now offer automatic WebP conversion, serving the format transparently based on the user’s browser capabilities. This approach requires no changes to your HTML while still delivering the performance benefits of modern image formats.