PNG to WebP Converter
Shrink PNG logos, illustrations and screenshots by converting them to WebP while keeping their transparent background. Convert a batch, check the savings for every file and download a ZIP.
- Free
- No upload
- No watermark
Images
Settings
Add images to convert
Runs in your browser with the canvas API; images are never uploaded. GIF encoding: gifenc (MIT).
WebP keeps transparency and saves space
Until WebP, a transparent image on a website had to be PNG, and PNG files of detailed graphics are heavy. WebP supports a full alpha channel together with lossy compression, so a transparent product photo or illustration often shrinks to a fraction of its PNG size and still blends cleanly into any background.
For crisp interface screenshots, line art and logos with sharp edges, use a high quality of 90 or more: lossy compression is least visible on photos and soft gradients, and most visible on thin lines and small text.
Nothing changes about how the image looks against the page: semi-transparent shadows and anti-aliased edges keep their alpha values. If a file gets bigger rather than smaller, which can happen with tiny flat icons, simply keep the PNG for that one.
How to use the PNG to WebP Converter
- Choose the PNG files or drop them onto the page; transparent PNGs are welcome.
- Set the WebP quality: 90 for screenshots and logos, around 80 for photos and illustrations.
- The converter keeps the transparent areas and shows how much smaller each WebP is.
- Download each WebP or get them all in one ZIP file.
Frequently asked questions
Does WebP keep the transparent background of my PNG?
Yes. WebP stores transparency, and the converter keeps every pixel's alpha value, including soft edges and shadows.
How much smaller will my images be?
It depends on the content. Photos and detailed illustrations often shrink by 50–80%; simple flat graphics shrink less, and very small icons may not shrink at all.
Can I use WebP images in WordPress and other sites?
Yes. WordPress, Shopify, Squarespace and other modern platforms accept WebP uploads, and all current browsers display them.
Is my artwork uploaded anywhere?
No. The PNG files are converted inside your browser and never leave your device, which keeps unreleased designs private.