PNG to WebP
Shrink the file while keeping the transparency that JPG would destroy.
Convert your images
Lower quality means a smaller file. Applies to JPG and WebP only.
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These files are processed locally. Nothing is uploaded.
What changes when you convert PNG to WebP
WebP was designed by Google to replace both PNG and JPG on the web, and it does the job well: a WebP re-encoded from PNG is typically 25-35% smaller, and unlike JPG it keeps the alpha channel intact. For web assets this is usually the right answer.
You also get to choose your trade-off. At quality 100 the encoder runs in near-lossless mode and files stay comparatively large but faithful; drop the slider and you get the kind of aggressive compression you would expect from JPG, still with transparency preserved.
The one thing to plan for is compatibility. Every current browser reads WebP — Chrome, Safari, Firefox and Edge have all supported it for years — but some older desktop software, a few print workflows and a handful of CMS uploaders still do not. If your destination is one of those, convert to JPG instead.
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- Serving logos and icons on a website without losing the transparent background
- Cutting page weight for Core Web Vitals without falling back to JPG
- Preparing product images with cut-out backgrounds for an online store
- Replacing PNG screenshots on a blog where every kilobyte affects load time
PNG vs WebP
| PNG | WebP | |
|---|---|---|
| Compression | Lossless | Lossless or lossy |
| Transparency | Supported | Supported |
| Typical size | Large | 25-35% smaller |
| Best for | Archival, editing | Websites, apps |
Other PNG conversions
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Frequently asked questions
Does WebP support transparent backgrounds?
Yes, and that is the main reason to pick it over JPG. Both the lossy and lossless modes carry an alpha channel.
Is converting PNG to WebP lossless?
It can be. At quality 100 the encoder works in near-lossless mode. Below that it becomes lossy, which is usually what you want for the web since the size saving is much larger.
Will WebP work in every browser?
In practice yes. Chrome, Firefox, Safari and Edge have all supported WebP for years, and it is supported on both iOS and Android. Compatibility problems show up in older desktop image editors and some upload forms, not in browsers.
PNG or WebP — which should I keep as my master file?
Keep PNG. It has the widest support among editing tools, and since WebP supports lossless mode you can always regenerate an identical-quality WebP from the PNG later.