Convert PNG to WebP with Lossless and Transparency Support
Shrink heavy PNG files into lightweight WebP format. Retain transparent backgrounds with lossy or lossless compression options.
Supports .png, image/png • 100% processed locally on your device
PNG graphics with transparent elements often become extremely heavy. Converting them to WebP allows you to preserve transparent backgrounds while reducing file sizes by up to 60 percent.
Choose lossy mode for dramatic size reduction, or lossless mode to preserve 100 percent of original pixel accuracy.
How to Convert PNG to WebP
Add PNG Images
Select one or more PNG files.
Select Compression Mode
Toggle lossless mode for exact graphic fidelity or adjust the quality slider.
Download WebP Images
Download your lightweight WebP files with full transparency intact.
Lossless WebP vs Standard PNG
Even in lossless mode, WebP files are typically 26 percent smaller than PNGs because WebP utilizes advanced techniques such as local palette generation, color cache indexing, and spatial entropy encoding.
Practical Tips
- For app screenshots and UI icons, try lossless mode first for maximum crispness.
Honest Limits
- Legacy image software may require an extra plugin to open WebP files.
Frequently Asked Questions
Does WebP keep transparency from PNG?
Yes. Full alpha channel transparency is preserved.
Should I choose lossy or lossless?
Use lossless for logos, diagrams, and sharp line art. Use lossy for rich illustrations and photos with transparency.
Is anything uploaded to a server?
No. All encoding runs in your local web browser.
Can I convert multiple PNGs at once?
Yes. You can select up to 30 files in a single batch.