Quick answer: To convert PNG to WebP, add the PNG files, keep 90 percent quality and press Convert to WebP. Transparent areas stay transparent. Photos saved as PNG often shrink by 80 to 90 percent; simple logos may shrink less. WebP is saved by Chrome, Edge and Firefox, not Safari. Nothing is uploaded.
PNG is lossless and often huge, especially for photos and screenshots. WebP supports transparency too, so product cut-outs, graphics and screenshots can become a fraction of the size.
PNG to WebP at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | PNG |
| Largest file | 50 MB per file, several files at once |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to convert PNG to WebP
- Choose one or more PNG files.
- Keep 90 percent quality for sharp edges, or lower it for photos.
- Press Convert to WebP.
- Download the WebP files and compare the sizes in the result.
Transparency is kept
Unlike JPG, WebP has an alpha channel, so cut-out product photos, logos and stickers keep their see-through background. That makes PNG to WebP the natural switch for online shops and websites that currently serve large PNGs.
How much smaller?
| PNG content | Typical saving as WebP |
|---|---|
| Photo saved as PNG | 80 to 90 percent |
| Screenshot with text | 50 to 80 percent; check the text stays crisp |
| Product cut-out with transparency | 60 to 85 percent |
| Small logo or icon with flat colours | Small; a compressed PNG or SVG may be as good |
The WebP made here is lossy, so it is not a pixel-perfect copy. For line art, UI and text, keep quality at 90 percent or higher, or stay with PNG and shrink it with Compress PNG.
Browser note
Chrome, Edge and Firefox can save WebP. Safari displays WebP but cannot create it; there the page falls back to PNG and tells you. Need JPG instead? Use PNG to JPG.
How this compares
| This tool | Online converters (e.g. TinyPNG, iLoveIMG or CloudConvert) | Desktop apps (e.g. Photoshop) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More image tools.
Frequently asked questions
Does WebP keep transparency?
Yes. Transparent and semi-transparent areas of the PNG stay transparent in the WebP.
Is PNG to WebP lossless?
Not here: the WebP is lossy, which is what makes it so small. At 90 percent the difference is hard to see, but for pixel-exact graphics keep the PNG.
Can I convert many PNGs at once?
Yes. Add them all and download the WebP files as a ZIP.
Are my images uploaded?
No. The conversion happens in your browser.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free