Why convert PNG to WebP?
WebP was developed by Google as a modern replacement for both JPEG and PNG. It uses a more advanced compression algorithm that typically reduces file sizes by 25-34% compared to PNG, while maintaining comparable or better visual quality. For websites serving lots of images, that is a meaningful bandwidth saving.
WebP also supports transparency, which means you can convert PNG graphics with alpha channels without losing the transparent areas. Unlike JPEG, WebP handles both lossless and lossy modes, giving you the flexibility to choose compression quality based on the image type.
All major browsers now support WebP, including Chrome, Firefox, Safari (since version 14), and Edge. If you are optimizing for Core Web Vitals or trying to reduce page weight, switching from PNG to WebP is one of the highest-impact format changes you can make.
WebP preserves transparency from PNG files, so icons, logos, and cutout images convert cleanly without any white background issues.
Convert PNG to WebP in three steps
Truly secure, no account, no installation. Everything processes instantly and privately.
Select your PNG
Drag a PNG file onto the tool or click to browse. A preview loads immediately with the original file size shown.
Set quality
Use the quality slider to control compression. For lossless output, set quality to 100. For web delivery, 80-85% gives excellent results at much smaller sizes.
Download WebP
Click Download to save the WebP file. Upload it to your website or use it anywhere that accepts modern image formats.
Getting the most out of your WebP files
Keep PNG originals
Store the original PNG files. WebP at high quality is excellent, but lossless PNG is still the gold standard for archiving.
Test cross-browser if needed
While WebP support is now widespread, very old browsers do not support it. Use a picture element with a PNG fallback if you need legacy support.
Use lossless mode for UI graphics
For icons, logos, and interface elements, set quality to 100 for lossless WebP. The file will be smaller than PNG but pixel-perfect.
Use lossy mode for photographs
For photos, quality 80-85% gives WebP files roughly half the size of the equivalent PNG with virtually no visible difference.
Pair with lazy loading
WebP saves bandwidth. Combine it with loading="lazy" on img elements to maximize page performance.
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP fully supports alpha channel transparency. If your PNG has transparent areas, they will be preserved in the WebP output.
Is WebP lossless or lossy?
WebP supports both modes. This tool defaults to lossy compression (adjustable via the quality slider). Set quality to 100 for lossless output that is still smaller than the original PNG.
Do all browsers support WebP?
All major modern browsers support WebP: Chrome, Edge, Firefox, and Safari 14+. Global support is above 95%. For the small percentage that do not, provide a PNG fallback using the picture element.
Is my image private and secure?
Your images are processed securely and stay private. They are never shared or stored anywhere.