PNG to WebP Converter
Convert PNG graphics, logos and screenshots to WebP so your web pages load faster, with every pixel and the transparent background kept.
Image Converter
or drag JPG, JPEG, JPE … files here ·
Up to 95 MB each· 20 files at once· Removed after 30 min
Your files are removed from our servers 30 minutes after processing.
85 keeps photos visually identical to the original. Lower it only when you need a smaller file.
JPG, BMP and EPS have no transparency. Transparent pixels are filled with this color.
Hex color used behind transparent pixels, e.g. #FFFFFF.
This format holds a single image. Choose GIF or WebP output if you want to keep the animation.
A multi-size icon contains several resolutions in one file; browsers and operating systems pick the one they need.
Keep the original dimensions, or enter one side and the aspect ratio is kept.
Pixels for the side you chose above.
Percentage of the original dimensions.
sRGB is right for screens and the web. Keep the original for print workflows; grayscale discards color.
Metadata only, 0 keeps the original value. Printers and some portals read this number; it does not change pixel dimensions.
Files are deleted 30 minutes after processingPrivacy policy
Will my PNG look different as WebP?
No. With Lossless on, the WebP holds exactly the same pixels and transparency, in a smaller file for your website.
- Output
- WebP, lossless
- Transparency
- Kept
- Use
- Web pages
- 26%Smaller than PNG, on average, for lossless WebPGoogle
- 22%Extra bytes lossless WebP needs to add transparencyGoogle
- 25–34%Smaller than comparable JPEG, for lossy WebPGoogle
- 2024Year WebP became IETF standard RFC 9649RFC Editor
Why websites switch from PNG to WebP
Images are usually the heaviest part of a web page, and PNG is a heavy format. It is lossless and supports transparency, which is why logos, icons, screenshots and product cutouts are so often PNGs, but it was designed in the 1990s and does not compress as tightly as newer formats.
WebP was built by Google for exactly this job. In lossless mode it keeps every pixel and the alpha channel, like PNG, and Google's figures above show the average saving. Smaller images mean pages that load faster, use less mobile data and score better in speed tests such as Lighthouse, which flags oversized images.
Every current browser displays WebP, so for most sites the switch is safe. The conversion is also reversible: a lossless WebP converts back to an identical PNG whenever you need one.
Not every PNG gains the same amount. Screenshots and interface graphics with large flat areas often get much smaller, while images that are already tiny or highly optimized gain less. Convert a few typical files first and compare the sizes before you replace a whole image library.
PNG and WebP side by side
PNG
PNG image
An open raster format the PNG Development Group published in 1996 as a patent-free replacement for GIF. Compression is lossless and a full alpha channel keeps soft edges and cutouts clean. It suits screenshots, logos and interface graphics; photos come out much larger than as JPG.
- Lossless
- Transparency
- Still images only
WEBP
WebP image
Google's image format for the web, released in 2010. One file type covers both lossy photos and lossless graphics, and it can carry a transparent background or a short animation. Every current browser shows it, yet many desktop programs, print services and upload forms still turn it away.
- Lossy or lossless
- Transparency
- Animation
Why convertPNG to WebP is the publishing direction: the same pixels and transparency in fewer bytes, for pages that load faster. It is aimed at your own website, where you control the browsers involved. If the image is going to someone else's software, keep PNG; to undo the switch later, use WebP to PNG.
Both formats support lossless compression and a full alpha channel, so nothing about the look of a logo or screenshot changes. WebP adds two things PNG lacks: an optional lossy mode for photographs, and smarter lossless compression that predicts pixels from their neighbors more effectively.
Where PNG still wins is reach outside the browser. Older editors, office programs and print workflows may not open WebP. Keep your PNG masters, and publish WebP copies on the site.
WebP is also an open, documented format. It was published as IETF RFC 9649 in 2024, and its encoder and decoder are available as free libraries, so support in tools keeps growing.
Lossless and lossy WebP
The drawing below shows where the choice is made. The PNG is decoded to pixels, and the WebP encoder then either keeps them exactly or compresses them with some loss, depending on the Lossless setting. Graphics belong in lossless mode; photographs saved as PNG usually belong in lossy mode at a quality around 80.
Lossless mode does not mean the files are as small as they can be. If a PNG photo stays large as lossless WebP, untick Lossless and try quality 80; the Image Converter lets you compare both from the same file.
With Lossless ticked, the WebP decodes to the same pixels as the PNG. Unticked, the quality slider applies and the file gets much smaller, at the cost of fine detail. For JPEG sources, see JPEG to WebP.
Publishing the WebP files
Resize before you convert. A screenshot taken on a high-resolution display can be several thousand pixels wide, while your page shows it at a fraction of that. Set a width under Resize output that matches the largest size the image appears at, doubled for high-density screens, and the WebP becomes lighter still.
Most content systems accept WebP uploads today. Replace the PNG references in your pages with the new files, and keep the PNG originals in your project folder. Up to 20 files fit in a batch; uploads are deleted after conversion and the WebP files 30 minutes later. For a fixed target size in kilobytes, Compress Image can take over from here.
How to convert PNG to WebP
Add the PNG images
Drop up to 20 PNG files on the box above, or press Choose Files.
Keep lossless or switch
Lossless is ticked, so pixels stay exact. For PNG photos, untick it under Advanced settings and set a quality for much smaller files.
Convert and upload
Press Convert to WebP, download the files and upload them to your site.
PNG to WebP questions
Is PNG to WebP lossless?
On this page, yes: Lossless is preset, so the WebP decodes to exactly the same pixels as the PNG, transparency included. If you untick it, the file becomes lossy and much smaller, which suits photos.
How much smaller is a WebP than the PNG?
It varies with the image. Google's own measurements put lossless WebP at about 26 percent smaller than PNG on average. Photos saved as PNG get far smaller still if you switch to lossy WebP.
Can every browser show the converted WebP images?
All current versions of Chrome, Edge, Firefox and Safari display WebP, as do Android phones. Very old browsers do not; if your audience includes them, keep a PNG or JPG fallback.
Should I use lossless or lossy WebP for PNG screenshots?
Lossless for screenshots, logos, icons and diagrams, where sharp edges and text matter. Lossy for photographs that happen to be stored as PNG.
Will WordPress and other site builders accept WebP uploads?
Most current site builders and content systems accept WebP. If yours rejects it, check for an update or a setting that allows the image/webp type.
| Other ways to get JPG | |
|---|---|
| Other ways to get PNG | |
| Other ways to get WEBP | |
| Other ways to get ICO | |
| Other ways to get VTF | |
| Other ways to get GIF |
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