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Convert PNG to WebP online, free
Turn a PNG into a WebP file that is smaller to send or to publish, without losing transparency.
- Runs on your device
- No sign up
- Ready in seconds
Add a picture to begin.
How to convert an image
Three steps from a file in the wrong format to one the thing you are using will actually accept.
Add your pictures
Drop them onto the panel or browse for them. They open in the page itself, so nothing is uploaded and a folder of photos starts immediately.
Choose the format
Pick what you need on the other side. The note underneath tells you what will happen, including anything that is about to be lost.
Check, then save
Every picture shows its new size next to a preview of the real result. Save them one at a time, or take the whole set as a zip.
Why use this tool
What this handles that most converters get quietly wrong.
Your pictures are not uploaded
Everything happens in the browser tab. Documents you scanned, photographs of family, product shots before launch: none of them go to a server you cannot see into.
It warns before losing something
JPEG cannot hold transparency, so converting a cutout to it has to fill the gaps. Most tools choose white in silence. This one tells you first and lets you pick the colour.
Location data is removed
Photographs from a phone carry the exact coordinates where they were taken. Converting here redraws the picture, which leaves that behind. Useful before anything goes online.
Batch, with nothing attached
Convert one file or eighty in the same pass. No sign up, no daily allowance, no watermark and no queue.
PNG files add up fast, especially if they’re logos, screenshots, or graphics with a transparent background. WebP was built to solve exactly that problem. It’s a newer format from Google that squeezes images down dramatically while keeping them looking sharp, and it’s now supported by every browser worth mentioning. This tool turns your PNGs into WebP right in your browser, no waiting, no upload.
Why convert PNG to WebP
The main reason people make this switch is file size. A PNG that weighs two megabytes can often shrink down to two or three hundred kilobytes as WebP, with barely any visible difference. That matters if you’re running a website, since heavier images mean slower page loads, and slower page loads affect both user experience and how search engines rank your pages.
The good news is you don’t have to give anything up to get there. WebP supports transparency just like PNG does, so a logo with a see through background stays exactly that way after conversion. It also supports lossless compression, meaning you can get PNG level quality in a smaller package if you choose the right settings.
How to convert PNG to WebP
Add your PNG files
Drop them in or select them from your device. One image or a whole batch, it makes no difference, the tool handles both the same way.
Convert to WebP
Hit convert and the image gets re-encoded as WebP right there in your browser. If your PNG has transparent areas, those areas stay transparent in the result, nothing gets filled in or flattened.
Download your files
Save each WebP individually, or download the whole set as a zip if you converted several. No account needed, no watermark, no limit on how many times you use it.
Does converting to WebP lose quality
Not if you keep the settings sensible. WebP supports both lossy and lossless compression. Lossless keeps every pixel exactly as it was in the PNG, just packaged more efficiently. Lossy trims a little more, and at a high setting the difference is invisible to the eye while the file gets noticeably smaller. For most web use, a quality setting somewhere in the high eighties gives you a good balance, small file, no visible artifacts.
Will the transparent background survive the conversion
Yes. This is one of the reasons PNG to WebP is such a safe swap. Both formats handle transparency the same way, through an alpha channel, so a logo or icon with a transparent background comes out the other side looking identical, just lighter in file size. You’re not trading transparency for smaller files here, you get both.
Batch converting multiple PNG files
If you’re prepping a whole folder of images, perhaps for a website rebuild or a product catalogue, add them all at once rather than one by one. The converter works through the batch, shows progress as it goes, and bundles the finished WebP files into a single zip you can download in one go.
Is this converter free and private
Completely free, with no sign up and no cap on usage. Your images are never uploaded anywhere either. The conversion runs using your browser’s own tools, so everything stays on your device from start to finish. You can verify this by checking your browser’s network activity while converting, or by disconnecting from the internet and trying anyway, it’ll still work, since there was never a server involved.
Related tools
- WebP to PNG, for going back the other way when you need broader compatibility.
- PNG to JPG, a good option when you don’t need transparency at all.
- Image Compressor, for squeezing file size down further on any format.
- Image Resizer, to get the dimensions right before or after converting.
- JPG to PNG, if you’re working the opposite direction with a photo.
Every one of these runs the same way, entirely in your browser, free, with nothing ever leaving your device.
Questions about png to webp
The questions worth settling before you convert something you cannot replace.
JPEG for photographs that need to open absolutely anywhere, including old software and stubborn upload forms. WebP when you control where the picture is going, since it is typically a quarter to a third smaller than a JPEG of the same visual quality and it keeps transparency. PNG for screenshots, logos, diagrams and anything with crisp text or hard edges. AVIF is smaller again where your browser can write it and the destination accepts it, though support is thinner than WebP.
It gets filled in, because JPEG has no transparent pixels at all. There is no way around it in that format. The tool warns you when any of your pictures have see through areas and lets you choose what colour goes behind them, rather than deciding on white and letting you discover it later. If you need the transparency kept, choose WebP or PNG instead.
Almost always because a photograph was converted into PNG. PNG records every pixel exactly, which is perfect for flat graphics and terrible for photographs, where it can easily produce a file several times the original. Going the other way, a screenshot pushed into JPEG gets smaller but the text picks up fuzzy edges. Match the format to the content and both problems disappear.
Moving between lossy formats does, since the picture is decoded and encoded again. Going from JPEG to WebP or the reverse costs a little detail even at high settings, so avoid converting the same file back and forth repeatedly. Converting into PNG loses nothing further, because PNG keeps whatever it is given exactly, though it does not restore anything that was already lost.
An animated GIF loses its animation, because the result is a single picture and only the first frame is kept. An SVG is a set of drawing instructions rather than pixels, so converting it means drawing it at a chosen size, and the result no longer scales cleanly the way the original did. Keep the SVG if you will ever need it larger.
Yes, as a side effect of how conversion works here. The picture is drawn onto a canvas and written out fresh, which leaves EXIF behind, including GPS coordinates, the camera model and the date. That is worth having before a photograph goes onto a listing or social media. It also means a shooting date you wanted to keep will not survive, so hold on to the original if that matters.
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