How to Convert Images to WebP: Optimize for the Web for Free
Learn how to convert JPG and PNG images to WebP format to speed up your website. Convert to WebP in your browser — free, instant, no uploads.
WebP is Google's modern image format that delivers 25–35% smaller files than JPG at equivalent visual quality. Converting images to WebP is one of the most effective ways to speed up your website and improve Core Web Vitals scores.
What is WebP?
WebP (Web Picture) is an image format developed by Google that supports both lossy and lossless compression, as well as transparency. All major modern browsers — Chrome, Firefox, Safari 16.4+, and Edge — support WebP natively.
Why convert images to WebP?
- •Smaller file sizes — 25–35% smaller than JPG at the same visual quality
- •Faster page load times — critical for user experience and bounce rate
- •Better Core Web Vitals (LCP) — a key Google ranking signal
- •Improved PageSpeed Insights score
- •Transparency support — replaces PNG without the large file sizes
How to convert images to WebP with ProUtils
- 1Go to the Image to WebP Converter tool.
- 2Upload your JPG, PNG, or other image.
- 3Adjust the quality setting if needed.
- 4Click "Convert".
- 5Download the WebP file.
Things to know before converting
Browser support
All major modern browsers support WebP. Internet Explorer does not. If you need to support very old browsers, provide a JPG/PNG fallback. For most modern web projects, WebP-only is safe.
Quality settings
WebP at 80–85% quality is nearly indistinguishable from the original and produces files significantly smaller than JPG at the same setting. Use 80% for photos, 90%+ for icons and UI elements.
Frequently asked questions
Is the WebP converter free?
Yes. The ProUtils WebP converter is completely free with no account required.
Does WebP support transparency?
Yes. WebP supports an alpha channel just like PNG, so you can replace large PNGs with smaller WebPs without losing transparency.
Is my image uploaded to a server?
No. All conversion happens in your browser. Your images never leave your device.
Ready to convert your images to WebP? Try the ProUtils WebP Converter now — free, no sign-up, instant results.