Convert to the modern format while preserving quality.
Reduce JPEG/PNG file sizes with WebP.
Drop images here
or click to select files (up to 50 images)
This tool was built for designers, developers, and bloggers who want to improve their website loading speed. By batch-converting JPEG and PNG files to the next-generation WebP format, you can expect an average file size reduction of 30% to 70% while maintaining image quality. No software installation or account registration is required -- the entire conversion runs in your browser.
WebP is an image format developed by Google. It delivers the same visual quality as JPEG at a smaller file size and supports transparency (alpha channel) just like PNG. Converting your website images to WebP can shorten page load times and improve both user experience and SEO performance.
The major advantage of WebP over JPEG and PNG is its ability to significantly reduce file size while maintaining comparable visual quality. This is especially noticeable on image-heavy sites such as e-commerce stores, portfolios, and blogs, where reducing total data transfer leads to clear speed improvements.
| Format | Transparency | Compression | Primary Use |
|---|---|---|---|
| WebP | Yes | Very High | Website speed optimization & SEO |
| JPEG | No | Moderate | Photos & gradient-heavy images |
| PNG | Yes | Low | Icons, logos & images requiring transparency |
Google uses Core Web Vitals as one of its search ranking factors. Page load speed (LCP) is particularly important, and reducing image file sizes is one of the easiest and most effective optimizations. If PageSpeed Insights flags "Serve images in next-gen formats," converting to WebP with this tool can improve your score.
Smaller image files also mean faster page loads on mobile networks. For sites with heavy smartphone traffic, switching to WebP can noticeably improve the user experience.
WebP is now supported by virtually all major modern browsers,
including Chrome, Firefox, Edge, and Safari (macOS 11 Big Sur / iOS 14 and later).
If you need to support older browsers, you can use the HTML <picture> tag to set up a JPEG/PNG fallback.
WebP conversion uses lossy compression by default. Setting the quality to "Best" preserves quality at a level that is virtually indistinguishable to the naked eye. Adjust the quality setting to find the right balance between file size and visual fidelity for your needs. Note that images already heavily optimized may see little to no reduction in file size.
Q. Will the image quality decrease after conversion?
A. Thanks to advanced compression algorithms, images are optimized with virtually no visible loss in quality. This tool offers four quality levels to choose from.
Q. Are my images uploaded to a server?
A. No. All processing happens entirely in your browser using JavaScript. Your images are never sent to any external server.
Q. Can I use WebP images in WordPress?
A. Yes. WordPress 5.8 and later natively supports WebP. You can upload files converted with this tool directly to your Media Library.
Q. Is PNG transparency preserved after WebP conversion?
A. Yes. WebP supports alpha channels (transparency), so transparency from PNG images is fully preserved after conversion.
Q. Can I use this tool on my phone?
A. Yes. It works directly in mobile browsers such as Safari and Chrome on iPhone and Android. You can select images from your camera roll or file manager.
Combine compression and resizing before or after WebP conversion to further optimize your website's loading speed. All tools are free and run entirely in your browser.