Your files never leave your device. All processing happens in your browser.
Open Img Stop PNG to WebP, drop your PNG files and set the Quality, 90% by default. Transparent areas stay transparent. Check the size in the preview, click Convert to WebP and download the files one by one or all together as a ZIP.
About the PNG to WebP
Img Stop PNG to WebP converts PNG images into WebP files that are often much smaller, while keeping the transparent background. This is ideal for website logos, icons, product cut-outs and screenshots. A heavy PNG of several megabytes can become a light WebP that loads quickly on phones and slow connections, with no visible change.
WebP supports both transparency and strong compression, so it combines the best parts of PNG and JPG. All current major browsers display WebP, and WordPress accepts it for uploads. The converter keeps the pixel width and height the same and lets you choose the quality. The preview shows the new size and the original size side by side.
Key features
- Keeps transparencyTransparent pixels stay transparent in the WebP.
- Big size savingsPNG photos and screenshots often shrink a lot as WebP.
- Quality sliderChoose 10–100% to balance size and sharpness.
- Size comparisonThe preview shows the WebP size and the original PNG size.
- Bulk conversionConvert many PNG files with one click.
- ZIP downloadDownload all WebP files together.
How to use the PNG to WebP
- Add PNG files Drop PNG images on the box, click Choose files, or paste with Ctrl+V.
- Set the quality Use the Quality slider; 80–90% is a good start for graphics.
- Convert to WebP Click Convert to WebP to process every file.
- Download Save each file or use Download all (ZIP).
PNG to WebP at a glance
| Price | Free |
|---|---|
| Input formats | PNG |
| Output formats | WebP |
| Transparency | Kept |
| Quality range | 10–100% (default 90%) |
| Batch | Yes – ZIP download |
| Processing | In your browser – files are not uploaded |
When to use it
- Make a transparent website logo load faster without a white box around it.
- Shrink heavy PNG screenshots for a blog or help center.
- Lighten cut-out product photos for an online store.
- Reduce the size of icons and illustrations in a web app.
- Save hosting space and bandwidth on an image-heavy site.
Tips for the best result
- For logos and text, keep quality at 90% or higher so thin lines stay clean.
- PNG photos save the most space as WebP; tiny flat icons may not shrink much.
- Keep the original PNG as a master copy for print and future edits.
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP can store a full transparent background, just like PNG. When you convert with this tool, every transparent pixel stays transparent, so your logo or cut-out image will sit cleanly on any page color.
How much smaller is WebP than PNG?
It depends on the image. PNG photos and detailed screenshots often become many times smaller. Simple icons with few colors save less. The preview shows the exact WebP size and the original size before you convert all files.
Will text in my PNG stay sharp in WebP?
At high quality, around 90% or more, text and thin lines stay clean. At low quality you may see slight blur around letters. Check the preview, and raise the quality if the text looks soft.
Should I use WebP instead of PNG on my website?
For most images, yes. WebP loads faster and keeps transparency, and all major current browsers support it. Keep PNG for files that must be edited later or used in software that does not read WebP.
Can I convert PNG to WebP on a phone?
Yes. Open the page in your mobile browser, tap Choose files and select your PNG images. The conversion runs on the phone and the WebP files are saved to your downloads folder.
Last updated October 29, 2026 by the Img Stop team.