PDFConvertersOnline.comHow to convert PNG to WebP
- Choose the PNG files you want to publish on the web.
- Leave WebP selected; set the quality slider to taste.
- Press Convert and save the WebP images one at a time or zipped.
The best of PNG and JPG in one format
For years web designers had to choose. PNG kept transparent backgrounds and sharp edges but produced big files; JPG was compact but couldn't do transparency and blurred fine lines. WebP supports both transparency and efficient lossy compression, so a logo on a transparent background or a product cut-out can be served at a fraction of its PNG weight while still blending into any page color.
PNG to WebP is especially effective for:
- Photos that were saved as PNG by a screenshot tool or an editor's default setting.
- Product images with the background removed.
- Hero banners and illustrations with gradients, which PNG stores inefficiently.
Transparency stays intact
The alpha channel of each PNG is carried into the WebP, including soft, semi-transparent edges and shadows. You don't need to pick a background color, unlike when you convert to JPG.
Quality setting for graphics
This converter creates lossy WebP files. The default 85% suits photos and most graphics. For screenshots with small text or pixel art with hard edges, move the slider toward 95–100% to keep letters clean. If sharpness is critical and the file size isn't, keeping the original PNG may be the better call; simple flat-color images are sometimes already smaller as PNG than as lossy WebP. Compare the old and new size shown next to each file in the results before replacing anything.
Browser support and fallbacks
Every current major browser can display WebP, so you can use these files directly in most websites and content systems. Email clients and older desktop programs are less consistent; for those, stick with PNG or JPG. If your site still needs PNG versions for a specific use, you can shrink them with Compress PNG instead.
Replacing PNGs on an existing site
If you swap images on a live website, keep the same base name and update the references to the new .webp extension. Test one page first and check it on a phone and a desktop browser. Many content systems and plugins can also serve WebP automatically while keeping PNG for older clients; in that case, uploading the converted files may not be necessary at all.
Nothing leaves your computer
The conversion is done with your browser's built-in encoder. Draft designs, unreleased screenshots and client work never pass through an outside server.
More ways to use this tool
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP has a full alpha channel, so transparent and partly transparent pixels are preserved when you convert.
Is the WebP lossless?
The files created here use lossy WebP with the quality you choose. At 95–100% the difference from the PNG is very small, but not bit-for-bit identical.
How much smaller will my images be?
It depends on the image. Photos saved as PNG often shrink dramatically; simple icons with few colors may shrink little or not at all. Each result shows the old and new size.
My browser says it can't save WebP. What can I do?
Open the page in a recent Chrome, Edge or Firefox, or choose AVIF as the output, which is created by code built into this page.
Can I also convert JPG files on this page?
Yes. Any image your browser can open is accepted, so a mixed selection of PNG and JPG files converts to WebP in one batch.
Are PNG text chunks or metadata kept?
No. The WebP is created from the pixels alone, which also means hidden text and editing notes in the PNG are left behind.