Image converter
PNG to WEBP Converter
Make PNG images lighter for websites by saving them as WEBP at quality 85. Transparency is kept. Up to 20 files at once, free and with no sign-up.
Tested by Thiago · Updated
Free, no sign-up · Sent over HTTPS · Files are deleted from our server automatically after 30 minutes
How to convert PNG to WEBP
- Add your files: drag them into the box above, or click "Choose files".
- Click "Convert to WEBP" and wait a few seconds while we process them.
- Download your WEBP files. Uploaded files are deleted right away, and converted files are removed from our server after 30 minutes.
Why convert PNG to WEBP?
If you run a website, blog or online store, converting PNG images to WEBP is one of the easiest ways to make pages load faster. WEBP files are usually much smaller than PNGs, all modern browsers support them, and unlike JPG, WEBP keeps transparent backgrounds. Faster pages mean happier visitors and help with search rankings.
- You want lighter images for a website, online store or blog.
- You need small images that still keep a transparent background.
- A page speed test recommends serving images in next-gen formats.
- Your hosting plan or website builder limits storage, and a folder of PNG photos is filling it up.
What we measured on real files
- Photos kept as PNG: the biggest win. Three photos 1600 pixels wide went from 2.9 to 3.8 MB down to 189 to 390 KB, between 90% and 94% lighter. At full 12-megapixel size the cut was 92% to 96%.
- A transparent logo: 24 KB became 12 KB, half the weight, and the see-through background was still there in the WEBP.
- A text-heavy screenshot: 210 KB became 110 KB, a 48% saving, with the lettering still easy to read.
Two limits to keep in mind
WEBP cannot be wider or taller than 16,383 pixels. Very long full-page screenshots and tall infographics often go past that, and the conversion will fail; split them into parts or reduce their size first.
This page makes lossy WEBP files at quality 85. For photos and most graphics that is invisible, but thin one-pixel lines and tiny text can pick up faint smudges. Zoom in on the result before replacing the images on your site, and keep using PNG for anything people need to read at the pixel level, like detailed charts.
Tips for the best result
- We save WEBP at quality 85, which keeps images crisp while cutting size a lot. Very detailed graphics may show slight changes on close inspection.
- Keep your original PNGs as masters, and publish the WEBP versions.
- Some older apps and editors still cannot open WEBP, so use it for the web rather than for sharing files with people.
- After replacing images on your site, update the file names in your pages as well. A page that still points to logo.png will not switch to logo.webp by itself.
About these formats
PNG: A lossless image format that keeps every pixel sharp and supports transparent backgrounds. Great for screenshots, logos and graphics.
WEBP: A modern image format from Google. It makes files much smaller than JPG or PNG, but some older apps and websites still cannot open it.
Frequently asked questions
How much smaller will my images be?
It depends on the image, but WEBP files are commonly a fraction of the PNG size. You will see the exact before and after size once the conversion finishes.
Is transparency kept in WEBP?
Yes. WEBP supports transparent backgrounds, just like PNG.
Do all browsers support WEBP?
All current versions of Chrome, Edge, Firefox and Safari support WEBP.
Does Google rank WEBP images higher than PNG?
Not because of the format itself. What helps is that lighter images make pages load faster, and loading speed is part of how a page is experienced by visitors and measured by search tools.
Is the WEBP from this page lossless?
No. WEBP has both a lossless and a lossy mode, and this converter uses lossy quality 85, which is what makes the files so much smaller. Keep your PNG originals if you ever need a pixel-perfect copy.