PNG to WebP Converter
PNG files are heavy for a web page, and that weight is what this png to webp converter removes. Drop in a PNG and your browser re-encodes it as WebP — a modern format that usually takes up far less space at a similar level of detail, transparency included. One slider lets you decide how hard it squeezes before you download the result.
Original width and height kept, transparency kept.
Convert PNG to WebP
Pick a PNG below and download a lighter WebP copy of it.
Drop your PNG file here
or browse for a file on this device
Accepts PNG files and returns WebP. Your picture keeps its original width and height — only the format, and its weight, change.
There are no other settings on this page — no resizing and no separate lossless switch, so what you set on the slider is exactly what the converter uses.
Handled on your device — no upload happens.
Why websites swap PNG for WebP
The same picture, delivered in fewer bytes — here is what that buys you.
Quicker loads on image-heavy pages
A blog post carrying a dozen screenshots, or a shop page full of product images, ships a lot of PNG weight. Re-encoding those files trims the total every visitor downloads, which is the sort of change page-speed tools and Core Web Vitals measure.
Transparency without the PNG bulk
PNG became the default for logos and overlays partly because of its see-through background. WebP carries that same transparency, so a header logo or a cut-out product photo does not need a solid box behind it after conversion.
Readable by today’s browsers
Chrome, Edge, Firefox and Safari all display WebP, so publishing it across a normal website no longer means a chunk of visitors see a broken image icon.
About this converter
The usual moment for this job is just before an image goes live: a screenshot for a tutorial, a banner for a landing page, a set of thumbnails for a gallery. Each one works fine as a PNG on your own screen, then quietly slows the page down for everyone else. Converting them first is a small habit with an outsized effect, and this free png to webp converter is built for that exact moment — open the page, convert png to webp, and carry on publishing.
Because the encoding runs inside your browser rather than on a company server, the page is equally handy for work that has not launched yet: a redesign in progress, a client’s draft assets, screenshots you would rather keep to yourself. It is a png to webp online tool with no installation step, and the WebP files it produces drop straight into the same websites, themes and page builders the PNGs were headed for.
Frequently asked questions
Honest answers on file size, quality settings and see-through backgrounds.
How do I convert a PNG to WebP on this page?
Drop your PNG into the upload box, or browse for it with the button. Leave the quality slider where it is for a first attempt, press Convert to WebP, and download the file your browser creates. The whole job happens on the page in front of you.
How much smaller will my WebP file be?
It depends on the picture. Photographic and richly detailed PNGs usually shed the most, while a tiny, already-simple icon may barely change. WebP commonly lands well under the PNG it came from at a similar appearance, but treat any exact percentage as a promise nobody can make before seeing your image — convert, then compare the two file sizes yourself.
What quality setting should I choose?
Start with the slider as it stands, around the low nineties, and look at the result. For photographs and banners you can often slide down into the seventies or eighties and gain a noticeably smaller file before the difference shows. For screenshots with small text, logos and sharp edges, stay high — those are the images where aggressive compression shows up first.
Will a transparent background survive the conversion?
Yes. WebP handles transparency the same way PNG does, so the clear areas around a logo, sticker or product cut-out stay clear in the converted file instead of filling in with white or black.
Does converting PNG to WebP lose quality?
At lower slider values, yes — that trade is precisely how the file gets smaller, and the slider exists so you control how far it goes. Near the top of the range the result is visually very close to the original, but a browser’s quality control is not a guaranteed pixel-for-pixel lossless mode. If an image is a master file you must keep exact, hang on to the PNG as well.
Are my images uploaded anywhere, and is this free?
Your image is not uploaded. The converter is code running in your own browser tab, so the file is read, re-encoded and returned without travelling to a server — and there is no charge, account or sign-up step before, during or after.