Convert PNG to WebP

FreeNo uploadNo signupWorks offline

Convert PNG images to WebP for much smaller files that keep transparency – great for website graphics, logos and screenshots.

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How to use PNG to WebP

PNG to WebP – Convert PNG images to WebP in your browser. Free, no upload.

Choose or drop your PNG images.
Adjust the quality if you like (the default suits most photos).
Click Convert to WebP.
Download each image or all of them as a ZIP.

Supported formats

Input: PNG
Output: WebP

What is WebP?

WebP is an image format made by Google that websites use because it is smaller than JPG and PNG. When you save an image from a website you often get a .webp file, which some apps, editors and upload forms do not accept. Converting it makes the image usable everywhere.

Transparency is kept

WebP supports transparency, so PNG logos and graphics keep their transparent background while becoming much smaller.

Limitations

Animated images are converted as a single still frame.
Very large images (over 100 megapixels) are refused to protect your device’s memory.

Privacy

Files you choose are read into your browser’s memory and processed on your device; they are not uploaded to a server. Temporary download links are released after use, and the offline cache never stores your documents. More about privacy and limits.

Frequently asked questions

Does PNG to WebP keep transparency?

Yes, WebP supports an alpha channel.

Are my images uploaded?

No. The conversion runs in your browser using WebAssembly versions of the same codecs desktop apps use. Your photos never leave your device.

Is it free?

Yes – free with no signup, no watermark and no daily limit. You can process many images at once.

Can I convert many images at once?

Yes. Select or drop as many images as you like; each is processed on your device and you can download them one by one or together as a ZIP.