Convert PNG to WebP
Convert images to WebP automatically in your browser. Select several files at once — free, with no uploads or sign-up.
100% local browser processing · zero image upload
What is a PNG to WebP converter?
A PNG to WebP converter re-encodes a PNG image as WebP, a format that keeps the alpha channel while cutting the file size. Every current browser reads it, and at the quality this tool uses, icons, screenshots and product images usually come out 30-70% smaller with no difference you can see on screen.
The saving comes from the way the two formats store pixels. PNG is always lossless, so it keeps every detail and pays for it in bytes; WebP drops what the eye is unlikely to miss. Flat-colour artwork, UI screenshots and rounded icons benefit most, and a photo that was saved as PNG shrinks even further.
Transparency survives the conversion. WebP carries an alpha channel, so cut-out logos, rounded icons and transparent product shots keep their edges, unlike JPG, which would flatten them onto a solid background.
Need a lossless file instead? The WebP to PNG converter goes back the other way. To shrink an image without changing its format at all, use the image compressor, and if the file has to open in older desktop software, the PNG to JPG converter writes something every application accepts.
How to convert PNG to WebP
- Drop your PNG files onto the upload area, or click to browse. The picker accepts several files at once, so a whole folder of .png images can be queued in one step.
- Check the queue: every entry shows the file name, its original size and WebP as the output format.
- Conversion starts automatically after you select your images.
- Download an image and open it to inspect the result, including any transparent areas.
- Compare the original and converted sizes. A 30-70% reduction is typical for icons and screenshots, and photos usually shrink further.
- Download the WebP files one by one, or use Download all to save the whole batch in one click.
PNG to WebP examples
Four conversions you can reproduce with the tool above. The output sizes below are typical results rather than exact guarantees.
App icon with transparency
icon-512.png — 240 KB, 512×512, alpha
icon-512.webp — 68 KB, alpha preserved (72% smaller)
UI screenshot
dashboard.png — 1.4 MB, 2560×1440
dashboard.webp — 0.5 MB (64% smaller, text still sharp)
Transparent logo for a landing page
logo.png — 96 KB, 800×200, alpha
logo.webp — 31 KB (68% smaller, edges intact)
Batch of product images
24 PNG files — 18 MB in total
24 WebP files — 5.6 MB in total, saved with one Download all click
WebP vs PNG
| Dimension | WebP | PNG |
|---|---|---|
| Transparency (alpha) | Supported | Supported |
| Compression | Lossy at the quality this tool uses | Always lossless |
| Size for icons and screenshots | Typically 30-70% smaller | Baseline |
| Size for photos | Usually 60-80% smaller | Baseline |
| Re-saving quality | Slight loss on every re-encode | Unchanged |
| Best for | Web icons, screenshots, product images | Editing, print, archival |
| Browser support | All current browsers | Universal |
Frequently asked questions
How do I convert PNG to WebP?
Drop the PNG files onto the upload area above and press Convert. Each file in the queue is re-encoded as WebP with its alpha channel intact, and you can download the results individually or all at once.
Does WebP keep transparency?
Yes. WebP supports an alpha channel, so transparent pixels stay transparent and the edges of a cut-out logo or icon are preserved.
Does converting PNG to WebP reduce quality?
Slightly, because the WebP written here is lossy. It is encoded at the level where icons and screenshots look identical on screen while the file gets much smaller. If a pixel-exact copy is the requirement, keep the PNG or use the image compressor instead.
Why is my WebP file not smaller than the PNG?
It happens with images that were already tiny before you started. A PNG-8 icon with a handful of colours, or a monochrome screenshot, is close to the smallest a file can be, and WebP can only match it. Large screenshots and photos are where the saving shows up.
Will a WebP file open in every app?
Every current browser reads WebP, and so do recent versions of Photoshop, Figma and Office. Older desktop software, some print workflows and a few CMS upload forms still expect PNG or JPG, which is what the converters linked above are for.
Can I convert several PNG files at once?
Yes. The upload area accepts multiple files and the queue converts them in a single run, so a folder of PNG images becomes WebP in one batch. Download all saves the whole set in one click.
Is this PNG to WebP converter free, and are my files uploaded?
It is free, with no sign-up, no watermark and no limit on how many files you convert. Nothing is uploaded either: the images are decoded and re-encoded in your browser, so they never leave your device.
PNG to WebP Tips
- WebP keeps transparency while cutting PNG size.
- Ideal for icons, screenshots and flat graphics.
- Photos usually shrink even more.