Convert PNG to WebP
Make PNG screenshots, illustrations, and product photos lighter for the web by converting them to WebP. Transparent backgrounds are kept, and you control the quality-to-size balance. Everything runs on your device, so nothing is uploaded.
Drop PNG files here
or
Files are processed on your device. Nothing is uploaded.
0 bytes uploaded
How to convert PNG to WebP
- 1
Drag your PNG files into the box above, paste a screenshot, or click “Choose files”.
- 2
Set the WebP quality and, if needed, a maximum width or height.
- 3
Download each WebP separately or all of them in one ZIP file.
About PNG and WebP
PNG is lossless and handles transparency perfectly, but photos and detailed graphics saved as PNG are often several megabytes — too heavy for fast web pages.
WebP was designed by Google for the web. It supports transparency like PNG and lossy compression like JPG, so a transparent product photo or a large screenshot often ends up 3 to 10 times smaller. All modern browsers display WebP.
Private by design
- Processed on your device — files are never uploaded.
- Works offline once the page has loaded.
- No limits on file count or size beyond what your device can handle.
Frequently asked questions
Is transparency kept when converting PNG to WebP?
Yes. WebP supports a full alpha channel, so transparent and semi-transparent areas stay exactly as they were in the PNG, even at lower quality settings.
What quality should I choose?
The default of 85% is a good balance for most images. Go lower (70–80%) for photos where size matters most, or higher (90–100%) for screenshots with small text and sharp lines.
Why is my WebP sometimes not much smaller?
Simple graphics with a few flat colours, such as icons and logos, are already compressed well by PNG. The biggest savings come from photos, gradients, and detailed screenshots.
Can every browser show WebP images?
Yes, all current versions of Chrome, Edge, Firefox, Safari, and mobile browsers support WebP. Some older desktop programs and email clients may not, so keep the PNG if you also need it there.
Are my images uploaded anywhere?
No. The images are encoded to WebP by your browser. If your browser has no built-in WebP encoder (some Safari versions), a small encoder is loaded and still runs locally.