Convert PNG to WebP

Dramatically smaller files with full transparency support. Free and private.

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Open PNG to WebP Converter →

Convert PNG to WebP — Free, Fast & Private

WebP offers the best of both worlds — small file sizes like JPEG and full transparency support like PNG. Converting PNG to WebP typically reduces file size by 40-60% while maintaining pixel-perfect transparency.

This makes WebP ideal for website logos, icons, illustrations, and any graphic that needs a transparent background. The smaller file size means faster page loads and better user experience.

MiniPx handles the conversion entirely in your browser. Your PNG files are never uploaded to any server. You can convert multiple files at once with no limits.

How it works

  1. Upload PNG files: Drag your PNG images with transparency into MiniPx.
  2. Select WebP format: Choose WebP to keep transparency with smaller size.
  3. Choose compression: Smart preset gives excellent quality with significant size reduction.
  4. Download WebP files: Save your converted files — transparency is preserved.

Frequently asked questions

Does WebP keep PNG transparency?
Yes. WebP fully supports alpha channel transparency, just like PNG, while producing files 40-60% smaller.
How much smaller is WebP than PNG?
Typically 40-60% smaller for photographic content, 20-30% for flat graphics. A 2MB PNG logo often becomes 400-800KB in WebP.
Should I use WebP instead of PNG?
For websites, yes. WebP is smaller and supported by all modern browsers. Keep PNG only as a fallback for very old browsers or when editing in software that does not support WebP.
Can I batch convert PNG to WebP?
Yes. Add multiple PNG files and convert them all at once. No file count limits.

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