Free browser-based PNG conversion
PNG to WebP Converter
Convert PNG screenshots and graphics to WebP in bulk.
Choose up to 20 PNG files, keep control of output quality and save the batch as WebP images. Files remain on your device — no uploads or registration.
- PNG files only
- Transparency supported by WebP
- ZIP downloads
Crush
Bulk WebP Image Compressor & Resizer
Drop your PNG images here, or browse
Accepts PNG · Converts to WebP · Max 50 MB each · Up to 20 images
Your original files stay on your device. WebP output is downloaded to your device.
What this tool does
For screenshots, interface graphics and transparent PNG assets, WebP can reduce web image weight while supporting transparency. Convert a batch in one place and review the results before replacing your production assets.
How to convert PNG to WebP
- 01
Choose PNG graphics
Select or drop PNG files, including screenshots, interface graphics and images with transparent backgrounds. Only PNG inputs are accepted on this page.
- 02
Review quality and transparency
Adjust compression quality and resize if appropriate. WebP supports alpha transparency, but always inspect fine text, hard edges and logos after lossy conversion.
- 03
Download WebP copies
Save each converted image or download the whole batch in a ZIP. Keep your original lossless PNGs for editing or pixel-perfect output.
Things worth knowing
Will transparent PNG backgrounds stay transparent?
The WebP format supports transparency and the conversion pipeline works with RGBA pixels. Check the output in your intended browser or design tool before publishing — especially for icons and brand assets.
When PNG might be better than WebP
If you need exact, lossless pixels for source artwork, editing or archival copies, keep the PNG. This tool uses a quality-controlled WebP encoding workflow; lossy settings may introduce artifacts around text, lines and flat-colour graphics.
Where WebP helps most
Large screenshots and high-resolution interface imagery can add unnecessary bytes to a page. Optimise exported sizes to how an image will actually be displayed, then compare visual quality and file weight.
Frequently asked questions
Can I bulk convert PNG images to WebP?
Yes. Select up to 20 PNG images in one batch, each up to 50 MB, then download results individually or together as a ZIP.
Does WebP support transparent backgrounds?
Yes, WebP supports an alpha channel. Review transparent elements after conversion, particularly with logos or crisp user interface assets.
Is this a lossless PNG to WebP converter?
No. Crush currently uses an adjustable WebP quality setting. Keep your original PNG if lossless, pixel-exact preservation is required.
Do you upload my PNG images?
No. Image processing happens in your browser and the source PNG files are not uploaded to Crush servers.