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Convert any PNG file to WebP online for free. Upload your PNG and download a smaller WebP with full transparency in seconds. No signup, no software, no watermarks.
WebP produces files significantly smaller than PNG while maintaining transparency support and very high visual quality. For web use — icons, logos, UI elements, illustrations with transparent backgrounds — switching from PNG to WebP reduces file size typically by 25 to 50 percent with no visible quality change at normal screen sizes.
Unlike converting to JPG, converting PNG to WebP preserves all transparent areas. This makes it the ideal conversion for any graphic that needs a transparent background on a website.
PNG is the standard for lossless graphics with transparency — but it produces large files. WebP delivers the same transparency with much smaller file sizes.
Icons, logos, UI components and decorative illustrations are commonly saved as PNG to preserve transparency. WebP delivers the same lossless-quality appearance with full transparency at file sizes typically 25 to 50 percent smaller than PNG. Replacing PNG assets with WebP in a web app or design system reduces the total asset bundle and speeds up initial page loads.
PNG is the standard for sharing brand logos with transparent backgrounds. When preparing assets for web use specifically — embedding in websites, email headers, digital ads — converting to WebP reduces the asset file size significantly. Modern email clients and ad platforms that accept WebP benefit from the smaller payload and faster loading.
Sprite sheets, UI overlays and texture atlases exported as PNG files can be very large. Converting these assets to WebP for web-based games or Electron apps built on web technologies reduces load times without sacrificing the transparency or quality required for those use cases.
Quick answers about how this tool works and how to get the best results.
Yes. WebP fully supports alpha transparency just like PNG. Any transparent or semi-transparent areas in your PNG will be preserved exactly in the WebP output. This is one of the key advantages of PNG-to-WebP conversion over PNG-to-JPG, which loses all transparency.
WebP supports both modes. When you use the quality slider in this tool, the output is lossy WebP — visually very similar to the original but with a smaller file. If you set quality to 100, WebP produces near-lossless output that is virtually identical to the PNG source while still being meaningfully smaller than the original PNG.
All modern browsers support WebP: Chrome, Firefox, Safari 14+, Edge and Opera. WebP covers over 97% of global web traffic. For any remaining users on very old browsers, a PNG fallback can be served using the HTML picture element, but this is rarely necessary today.
Yes. The conversion runs entirely in your browser. Your PNG is never uploaded to a server and no image data leaves your device. Close the tab and the data is cleared from memory.