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HEIC · JPG · PNG · WebP · AVIF · GIF — up to 50 MB
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Free account. Your images stay on this device.
Batch: up to 10 images per run free, 50 with any credit pack.
Processing runs in this tab. Your images are never uploaded to a server.
Need AVIF or JPG instead? The image converter exports those too.
Why websites swap PNG for WebP
PNG is lossless, which makes it heavy for anything with gradients or photographic detail. WebP handles the same images, transparency included, in far fewer bytes.
Faster Largest Contentful Paint
Hero images and product shots are often the biggest thing on a page. Smaller files help them render sooner, especially on mobile data.
Transparency without the PNG weight
WebP keeps an alpha channel even in lossy mode, so cut-out product photos stay transparent at a fraction of the size.
Supported by every current browser
Since Safari 14 you can serve WebP to essentially all visitors without a PNG fallback for modern browsers.
PNG vs WebP: format properties
The biggest wins come from photographic PNGs. Tiny flat icons gain less.
| Property | PNG | WebP |
|---|---|---|
| Compression | Lossless (Deflate) | Lossy (VP8) or lossless (VP8L) |
| Transparency | 8-bit alpha | 8-bit alpha, in both modes |
| Animation | APNG only, limited tooling | Yes |
| Colour depth | Up to 16-bit per channel | 8-bit per channel |
| Size for photo-like images | Large | Often a fraction of the PNG |
| Size for simple icons | Already small | Similar or slightly smaller |
Savings depend on image content; check the result size before replacing files.
Lossy slider or visually lossless
Quality 80–90 is usually indistinguishable for screenshots and illustrations. Watch sharp text at 100% zoom before going lower.
16-bit PNGs get reduced
WebP is 8-bit, so 16-bit PNGs from scanners or design tools are reduced to 8 bits per channel.
When to keep the PNG
WebP is a delivery format. Some jobs still belong to PNG.
Master files and editing
Keep the lossless PNG as your source. Export WebP for the site, and re-export when the design changes.
Email and documents
Many email clients and older office apps handle PNG more reliably than WebP.
Pixel-perfect assets
Pixel art, QR codes and tiny UI sprites can blur under lossy WebP. Use a high quality setting or keep PNG.
Where WebP is supported
For web delivery, support is essentially universal today. Outside the browser, check the target app.
| Platform | PNG | WebP |
|---|---|---|
| Chrome, Edge, Firefox, Opera | Yes | Yes |
| Safari | Yes | 14+ on macOS 11+ and iOS 14+ |
| WordPress | Yes | Uploads supported since 5.8 |
| Email clients | Yes | Inconsistent |
| Office and older desktop editors | Yes | Recent versions only |
Support checked September 2026.
Encoded in your browser
Your browser's WebP encoder is used where available; otherwise a WebP encoder loads on demand. Files are never uploaded.
Serving it on your site
Use the WebP in a plain img tag for modern browsers, or a picture element with the PNG as fallback if you still support very old devices.
PNG to WebP: questions
Does PNG to WebP keep transparency?
Yes. WebP supports an alpha channel in both lossy and lossless mode, so transparent backgrounds are preserved.
How much smaller is WebP than PNG?
It depends on the image. Photographic and gradient-heavy PNGs usually shrink the most; simple flat icons may barely change. The result panel shows the exact size.
Should I convert PNG to WebP for my website?
For images you serve on web pages, generally yes: smaller files load faster and every current browser displays WebP. Keep the PNGs as your editable masters.
Will text in screenshots stay sharp?
At quality 85–90 text usually stays crisp. If you see fringes around letters, raise the quality slider.
Can I bulk convert PNG to WebP?
Yes, up to 10 files per batch on a free account or 50 with a credit pack, downloaded as a single ZIP.
Is PNG to WebP conversion private?
Yes. Encoding runs in your browser tab, so your images stay on your device.
Related conversions
Other format pairs with the same source or target.