Short answer: To convert PNG to WebP, drop your images above, choose WebP and click Convert. WebP files are usually smaller than PNG and keep transparent backgrounds. Everything runs in your browser, so your images stay private.
PNG is wonderful for screenshots, logos and graphics, but its files can be heavy, and heavy images slow down web pages. WebP was designed to fix that. It can store the same transparent graphics in a much smaller file, and every current browser can show it. Drop your PNG files here, choose WebP, and compare the sizes in the results list. Everything happens on your device, so unreleased designs and private screenshots stay private.
How much smaller will it get?
It depends on the picture. Photos and images with soft gradients shrink the most, often to a fraction of the PNG size, because WebP can use lossy compression. Flat logos with few colors shrink less, and tiny icons sometimes barely change. The results list shows the size before and after for every file, so you can see immediately whether a conversion was worthwhile. If a file comes out larger, simply keep the original.
When is WebP the right choice?
Use WebP for images on websites, in online shops, in newsletters that support it and in apps you build. Page speed matters for search ranking and for visitors on slow connections, and images are usually the heaviest part of a page. WebP keeps transparency, so a logo with a see-through background still sits cleanly on any color. Choose PNG instead when you need the image to open in older design software or to be edited repeatedly without any loss.
What should you watch for?
Lowering the quality slider makes lossy WebP files smaller but can blur sharp text in screenshots, so check small type before publishing. Some older programs and a few email clients cannot open WebP, which makes it a poor format for files you send to other people. If you need exact pixels, a pixel-perfect archive or print work, keep the PNG. You can also resize in Advanced options to save even more weight.
A simple workflow for a website
Keep your original PNG files in a folder named masters and treat the WebP files as the copies you publish. Convert a handful of your heaviest images first, such as banners and product shots, since they save the most. Look at each converted image on the page at its real display size rather than zoomed in. If a graphic shows faint halos around text, raise the quality and convert it again, or keep that one file as PNG. A few well chosen conversions often improve page weight more than dozens of tiny ones.
Questions people ask
Does WebP keep transparent backgrounds?
Yes. WebP supports transparency, so logos and cut-out images keep their see-through areas.
Can every browser show WebP?
All current major browsers can. Some older programs and email clients cannot, so use JPG or PNG for files you send around.
Why did one of my PNGs get bigger?
Very small or very simple images are already tiny as PNG. The results list shows when that happens, and you can keep the original instead.
Will my WebP look different in an old program?
If the program cannot read WebP at all it will not open it, rather than show it differently. Keep your PNG masters so you can always give a PNG to software that needs one.
Should I convert my logo to WebP?
For showing it on a modern website, yes. For sending to a printer or a designer, keep PNG or the original vector file, which more tools accept.
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Last reviewed: October 17, 2026