PNG to WebP

Turn PNG images into WebP while keeping transparency.

Your files stay on your device.

Files are processed locally in your browser and are not uploaded to our servers.

Drop image here

or

PNG · Up to 50 MB

Conversion

PNG to WebP

Need a different format? Use Convert Image .

80 %

Higher quality usually creates a larger file.

How to convert PNG to WebP

  1. Choose a PNG image, or drop it onto the box above.
  2. Optionally adjust the quality.
  3. Click Convert Image, compare both versions and download the WebP.

Why convert PNG to WebP?

WebP can keep transparency like PNG while often producing smaller files, which makes it a common choice for images on websites.

This page converts a PNG to WebP in your browser, keeping its dimensions and transparent areas.

What to know before converting PNG to WebP

  • Transparency is kept: Transparent and semi-transparent pixels stay transparent in the WebP file.
  • Our WebP output is lossy: The tool writes WebP with a quality setting. That usually saves space, but it is not a pixel-perfect copy of the PNG.
  • Smaller in many cases, not guaranteed: Photos and colourful graphics often shrink a lot. Very simple graphics that PNG already stores efficiently may not get smaller.

Choosing the quality

Graphics with flat colours and sharp edges may need a higher quality than photos to avoid visible artefacts around edges. Compare both versions in the preview before you download.

Your images stay on your device

The conversion runs in your browser; your image is not uploaded. Images larger than 40 megapixels are not supported, because they would exceed what a browser tab can safely handle.

Other conversions

Frequently asked questions

How do I convert PNG to WebP?

Select a PNG above, adjust the quality if needed, then click Convert Image and download the WebP.

Does WebP keep the transparent background?

Yes. Transparent areas of your PNG remain transparent in the WebP file.

Is the WebP an exact copy of my PNG?

Not exactly. Our WebP output uses lossy compression, so tiny details can change. If you need a pixel-perfect copy, keep the PNG.

Will the WebP always be smaller?

No. It often is, particularly for photos, but some simple graphics are already very compact as PNG. The result panel shows both sizes.

Are my images uploaded?

No. Everything happens in your browser.