How to Change PNG to WebP on Mac
PNG is lossless, meaning every pixel is stored exactly, and it supports full transparency. Add your PNG file to the box below and it turns into a WebP instantly, on your own Mac, without anything being uploaded.
Drop PNG files here or browse
Accepts HEIC, WebP, PNG, JPG, BMP, GIF and SVG · multiple files · nothing is uploaded
Converted on your device. Your photos never leave your browser.
The steps: Change PNG to WebP on Mac
- 1
Open this page in Safari, Chrome or Firefox on your Mac.
- 2
Drag the file out of Finder onto the box above, or click the box to choose it.
- 3
Your WebP is ready the moment the file is added. Lower the Quality if you'd like a lighter file.
- 4
Click Download. You'll find the file in your Downloads folder (in Finder or on the Dock).
What happens to your image going from PNG to WebP
- WebP is a lossy format. The Quality slider begins at 90%, which is indistinguishable from the original for almost any photo; slide it down for a smaller file and the preview shows the new size before you save.
- Make sure the place you're uploading to takes WebP – most sites and browsers do, though some older apps and forms don't.
PNG vs WebP in brief
- PNG is lossless, meaning every pixel is stored exactly, and it supports full transparency. That suits screenshots, logos and graphics perfectly, but a photo saved as PNG is often several times larger than the same shot as a JPG.
- WebP is an image format Google designed to make websites load faster. It handles lossy and lossless compression, transparency and animation, and typically comes out 25–35% smaller than a matching JPG, although some editors, older programs and upload forms still won't take it.
Mac tips
- macOS has its own shortcut as well: select images in Finder, right-click › Quick Actions › Convert Image (macOS 12 or newer) to get JPEG, PNG or HEIF. It can't output WebP and doesn't preview the quality.
- It runs the same on Apple silicon and Intel Macs, with nothing to get from the App Store.
PNG vs WebP
| PNG | WebP | |
|---|---|---|
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes, with a full alpha channel | Yes |
| Animation | No (editors rarely support APNG) | Yes |
| Ideal for | Screenshots, logos and graphics with text or see-through areas | Quick-loading pictures on web pages |
| Works on | Everywhere | Every modern browser; uneven in older desktop software |
Questions & answers
Does changing PNG to WebP lower the quality?
At the 90% default you won't be able to tell. WebP is lossy, so very low settings can bring blur or blocky edges.
Can I do a whole batch of PNG files?
Yes. Add as many as you want; each is converted separately, and Download all bundles them into a single ZIP.
Do my photos get sent anywhere?
No. Your browser does the conversion with your device's own processor, so your photos stay with you. Once the page has loaded you could even switch off your internet connection.
Where do I find the converted file on my Mac?
Click Download. You'll find the file in your Downloads folder (in Finder or on the Dock).
Need more options? Open the full PNG to WebP tool →