Why convert PNG to WebP for my website?

WebP files are typically 25–35% smaller than equivalent PNGs at the same visual quality, which means faster page loads, lower bandwidth costs, and better Core Web Vitals scores. It supports transparency, so it is a drop-in replacement for most PNG graphics.

Does WebP keep transparency?

Yes. WebP fully supports an alpha channel, so transparent PNGs convert to transparent WebP without a background fill.

Is WebP lossless or lossy?

WebP supports both. This converter produces high-quality WebP that preserves the look of your PNG while shrinking the file. For graphics with flat colors and sharp edges, the savings are usually largest.

Do all browsers support WebP?

Yes — every modern browser (Chrome, Edge, Firefox, Safari 14+) supports WebP. Only very old browsers do not, which is rarely a concern today. For maximum safety on legacy systems, keep a PNG fallback.

Are my files uploaded anywhere?

No. Conversion runs 100% in your browser via your device's encoder. Files never leave your machine.

When should I NOT convert to WebP?

If you need the file in an app or workflow that rejects WebP (some older editors, certain print pipelines, or email signatures), stick with PNG or JPG. WebP is best for the web and modern apps.

Can I batch convert PNGs to WebP?

Yes — up to 20 at once, downloadable as a ZIP. Great for optimizing a whole set of site images.

What is the maximum file size?

100MB per file, more than enough for web graphics and high-resolution PNGs.

PNG to WebP Converter

Convert PNG to WebP free online — no upload, 100% private. Shrink images ~30% for faster websites while keeping transparency. No signup, no limits.

FileConvertir — Free Online File Converter