PNG to WebP Converter is a free tool that converts PNG images into WebP files that are usually far smaller and still support transparency. It runs entirely in your browser, and your images are never uploaded.
How to convert PNG to WebP
- Drag your PNG files into the box above, or tap Choose files. You can add many at once.
- Each image is converted straight away on your device. The new size is shown next to each file.
- Click Download for a single image, or Download all as ZIP for several.
How much you can save
- Screenshots and graphics: often 50–80% smaller.
- Photos saved as PNG: often 90% smaller or more, because PNG is very inefficient for photos.
- Logos and icons with transparency: transparency is kept, typically at a fraction of the size.
Choosing a quality
WebP at 90% looks the same as the PNG for almost all images. For screenshots containing small text, use 95–100% so letters stay crisp. For photos, 80% is usually plenty.
When to stay with PNG
Keep PNG when a program or service doesn’t accept WebP, or when you need an exact, lossless master copy for further editing. To shrink a PNG without changing its format, use the Image Compressor, which optimises PNGs without any quality loss.
Frequently asked questions
Is transparency kept?
Yes. WebP supports transparency, so transparent areas stay transparent.
How much smaller will my images be?
Screenshots and graphics often shrink by 50–80%, and photos saved as PNG can shrink by 90% or more. The size before and after is shown for each file.
What quality should I choose?
For photos, 80–90% looks the same as the original to most people. For screenshots with small text, use 95–100% to keep edges crisp.
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