A real WebP file
The tool decodes the PNG and encodes a WebP. It checks the resulting MIME type, header, and dimensions before enabling Download. Renaming the source extension would not produce this result.
ONELESS · IMAGE LIGHT
PNG to WebP
PNG to WebP creates a new WebP file for a page, document, or application that accepts it. Switch between Original and Result in the large preview to judge the change before saving. Transparent PNG graphics keep their alpha channel instead of being flattened onto a background. The quality control affects color detail, so lettering and soft edges deserve a close look. Both file sizes are measured after encoding.
Open PNG to WebP · This tool needs JavaScript for image processing. The complete guide is available below.
UNDERSTAND THE RESULT
A little context before the next click.
Quality controls a lossy encode
The slider ranges from 10 to 100. Higher values tend to retain more detail and use more bytes, but 100 is not a lossless mode. This browser-based converter does not offer a separate lossless WebP encoder or claim a guaranteed quality percentage.
Transparent edges remain
The WebP retains the source alpha channel. The checkerboard shows where the image is transparent; it is not saved into the output. No background color is added, but lossy encoding can change RGB detail near edges.
HOW TO USE IT
From an original to a clear next step.
- Choose a still PNG file, drop it onto the workspace, or try Sample. The input header is checked even when its filename is misleading.
- Adjust Quality and switch between Original and Result to compare the WebP copy. Wait for the new result before judging the size; outdated downloads are disabled during processing.
- Check the actual byte sizes and preview. Pay attention to fine lettering and translucent edges. The displayed pixel dimensions stay unchanged.
- Download the .webp copy if its appearance and format suit your destination. Keep the original for later editing, and use Clear or Choose image for the next file.
EVERYDAY USES
Small image tasks, with room to see.
A transparent web graphic
Prepare a logo or illustration for a WebP-capable page without baking in a background. Test the resulting image against the backgrounds where it will appear.
An application with a format requirement
Create a genuine WebP file rather than renaming an extension. Check the destination’s separate dimensions, byte limit, and animation requirements before uploading.
A screenshot with sharp detail
PNG may remain the better choice for small text, line art, or images that require exact decoded pixels. The visible comparison lets you decide whether the WebP tradeoff is worthwhile.
YOUR IMAGE, YOUR DEVICE
Local processing. A separate result.
The selected image is read and processed in this browser. This tool does not upload the file to a server or save it in browser storage. Choosing another file or leaving the tool releases its working images. Downloaded copies remain wherever your browser saves them.
Every change starts from the original image in memory. Export creates a new raster file; original EXIF, camera information, and embedded profile metadata are not copied. Browser decoding and color management can affect the result, so keep your original for archival work.
This release handles one file at a time, up to 25 MB, 16 megapixels, and 16,384 pixels on either side. Animated images are rejected rather than flattened to one frame. Browser encoding support can vary. A failed export shows an error and never leaves an outdated result ready to download. Read the site privacy policy for the surrounding website.
File sizes and limits use decimal units: 1 KB = 1,000 bytes and 1 MB = 1,000,000 bytes. Rounded labels are for readability; target checks compare exact bytes.
KEEP IT NEARBY
One less search next time.
Bookmark this page with Ctrl + D on Windows or Command + D on a Mac. To make a desktop shortcut, use your browser’s shortcut or Add to Home Screen option when available. The shortcut opens the tool page; it does not include your image or settings.
Choose a OneLess shortcut icon
Download a PNG or ICO if your device lets you customize shortcut icons.
Soft Coral
Warm Peach
Sunset Orange
OneLess Blue
Rose PinkQUESTIONS, ANSWERED
Before you save or share.
Is this lossless WebP?
No. This converter uses the browser’s lossy WebP quality control. Quality 100 is not labelled or guaranteed as lossless.
Will the WebP always be smaller?
No. Some PNG files are already compact. The actual result can be larger; both sizes are shown so you can keep the original when conversion offers no useful benefit.
Does it change dimensions?
No. It preserves the displayed, orientation-adjusted width and height. Use Image Resizer for a different pixel size or Resize Image to KB for a byte ceiling.
What happens to transparency?
Existing alpha remains in the WebP. The converter does not add a background, remove opaque areas, or infer an object mask.
Can I recover lost detail?
No. Format conversion and a higher quality setting cannot restore detail absent from the source, repair blur, or increase real resolution.
What if my browser cannot encode WebP?
The output format is checked. If the browser returns a different format or fails to encode, the tool shows an error instead of downloading a mislabeled file. Animated PNG is rejected; original metadata is not copied.
ANOTHER SMALL TASK?
Keep the next step close.
Ready for the image in front of you?
Keep transparent edges while choosing a lighter WebP copy.
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