PNG to WebP Converter Free Online — Reduce PNG Size Dramatically
Convert PNG to WebP Free — Optimized for Faster Web Pages
WebP images are 25–35% smaller than equivalent PNGs at the same visual quality, and they support transparent backgrounds just like PNG. Converting your website's PNG images to WebP is one of the fastest ways to improve load speed. Our free PNG to WebP converter does this in your browser — nothing uploaded.
Why WebP Beats PNG for Web Publishing
Smaller files, faster pages: WebP compresses PNG data more efficiently without visual quality loss. Transparency preserved: WebP supports alpha transparency, so transparent logos and cutout images work perfectly. Google Core Web Vitals: Image size directly affects LCP scores and search rankings. Universal browser support: All modern browsers have supported WebP since 2020.
When to Keep PNG
For non-web use — print, email to others, design software — PNG is often safer than WebP due to wider software compatibility. WebP is specifically optimized for web delivery.
Private, Free, No Limits
Conversion runs locally. Nothing is uploaded. No account, no watermarks.
Frequently Asked Questions
Is transparent background preserved when converting PNG to WebP?
Yes. Both PNG and WebP support alpha transparency. Logos, icons, and cutout images with transparent backgrounds convert cleanly.
How much smaller will the WebP be?
Typically 25–35% smaller than the original PNG at equivalent visual quality.
Is WebP supported on all browsers?
All modern browsers support WebP: Chrome, Firefox, Edge, and Safari (since 2020). Only very old browsers (IE11, Safari 13 and earlier) lack support.