Yes. PNG to WebP is free with no account, no watermark, and no conversion limit. You can convert as many PNG images to WebP as you like. The tool runs in your browser at no cost, so there is no premium tier and no cap that interrupts you after a handful of graphics have been converted.

Does WebP keep transparency?

Yes. WebP supports an alpha channel just like PNG, so transparent and partially transparent areas are preserved during conversion. This is the key advantage over converting to JPG, which flattens transparency onto a solid background. A transparent PNG logo becomes a transparent WebP that still sits cleanly over any background on the web.

How much smaller is WebP than PNG?

Lossless WebP files are around 26 percent smaller than the equivalent PNG, according to Google's published figures, with the exact saving depending on the image. Lossy WebP can be smaller still. For web graphics with many icons and illustrations, that reduction speeds up page loads and lowers bandwidth without losing the crisp edges PNG provides.

Should I use lossless or lossy?

Use lossless WebP for text, logos, line art, and screenshots where every pixel matters, since it keeps the image perfect while still beating PNG on size. Use lossy WebP for complex or photographic images where a slight softening is acceptable in exchange for an even smaller file. The right mode depends on the content.

Are my images uploaded?

No. PNG to WebP converts locally in your browser. The image is drawn to a canvas, encoded as WebP in memory, and returned as a download without being sent to any server. Nothing is stored or logged, so your graphics stay private on your device and are cleared from memory when you close the tab.

Does it work on mobile?

Yes. PNG to WebP is responsive and runs in mobile browsers with no app. You can select a PNG from your phone, convert it, and download the WebP directly. Because everything happens on your device, nothing is uploaded, and the controls stay touch-friendly on screens as narrow as 375 pixels.

PNG to WebP — Free Online Tool

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PNG to WebP is a free online tool that converts PNG images into the modern WebP format in your browser, keeping transparency while producing files that are roughly 26 percent smaller than PNG.

Why WebP beats PNG on size

WebP supports lossless compression like PNG but encodes it more efficiently, so lossless WebP files are around 26 percent smaller than the same image as PNG, according to Google. WebP also keeps the alpha channel, so transparency is preserved. For web graphics, icons, and screenshots, that size saving speeds up pages without sacrificing the crisp edges PNG is known for.

Transparency is kept

Unlike converting to JPG, moving from PNG to WebP preserves transparency, so a logo or icon with a clear background stays clear. This makes WebP a true replacement for PNG on the web, combining smaller files with the transparency that overlays and layered designs depend on. You get PNG-quality graphics at a lower bandwidth cost.

Lossless or lossy

WebP can save your PNG losslessly for pixel-perfect graphics, or in lossy mode for even smaller files when a little softening is acceptable. Lossless is the right choice for text, logos, and line art, while lossy can shrink complex images further. Having both modes in one format is part of why WebP is so versatile.

Private and local

PNG to WebP runs in your browser. The image is drawn to a canvas and encoded as WebP locally, then returned as a download. Nothing is uploaded or stored, so your graphics stay on your device. The conversion is near-instant for typical images.

How To Use PNG to WebP

Open the PNG to WebP tool and add your image.
Choose lossless or a quality level if offered.
Let the tool encode it as WebP in your browser.
Compare the smaller file size in the result.
Download the WebP image.

Shrink web graphics

Convert PNG icons and illustrations to WebP so pages load faster while keeping transparency intact.

Optimize a logo

Turn a transparent PNG logo into a smaller WebP that still sits cleanly over any background.

Reduce a screenshot

Save a PNG screenshot as lossless WebP to keep text sharp at a smaller file size.

PNG versus WebP for graphics
Aspect	PNG	WebP
Lossless size	Baseline	About 26% smaller
Transparency	Yes	Yes
Modes	Lossless only	Lossless or lossy

Related Tools

Key Features PNG to WebP

Files processed locally — never uploaded to any server

Lightning fast browser-based processing with WebAssembly

No account, no signup, no registration required

100% free for all standard use cases

Available in 70 languages worldwide

Works on any device: desktop, tablet, and mobile

Your Files Stay Private

All processing happens in your browser using WebAssembly. Your file is never sent to our servers. We have zero access to your files — guaranteed.

Frequently Asked Questions

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