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WebP delivers dramatically smaller file sizes than PNG with virtually identical visual quality — convert instantly in your browser.
WebP is Google's modern image format designed for the web. It delivers file sizes 25-80% smaller than PNG while maintaining excellent visual quality — including support for transparency.
Our converter runs entirely in your browser. No server uploads, no waiting, no limits. Drop your PNGs and get optimized WebP files in seconds. Perfect for improving Core Web Vitals and page load performance.
WebP files are 25-80% smaller than PNG equivalents. For a typical website with 20 images, switching from PNG to WebP can reduce total page weight by several megabytes — directly improving Largest Contentful Paint (LCP) scores.
Unlike JPG, WebP fully supports alpha transparency. Your transparent PNGs convert to transparent WebPs with no quality compromise — perfect for logos, icons, and UI elements.
Google recommends WebP for optimal web performance. Smaller images mean faster LCP, lower bandwidth usage, and better SEO rankings. WebP is now supported by 97%+ of browsers globally.
Your PNG files never leave your device. The browser's native Canvas API handles the WebP encoding locally. Complete privacy, every time.
Built for professionals who need speed, privacy, and quality.
Need to convert entire image folders to WebP automatically? The FastCompressor Pro desktop app includes folder watching, custom quality presets, and unlimited batch processing.
Drag and drop up to 10 PNG files into the converter, or click to browse from your device.
Adjust the quality slider — lower values give smaller files, higher values preserve more detail. 80% is a great default.
Hit Process and download your optimized WebP images. Individual downloads or batch save.
Use our free browser tools for small, instant jobs. For unlimited batch processing and total privacy, we recommend the desktop app.
MP4, MOV & WebM size reduction. High efficiency encoding for web & social.
Smart lossy reduction.
Keep alpha transparency.
Next-gen performance.
Frame optimization.
Archival lossless.
Unlimited Power
Remove backgrounds.
Smart dimensions.
Fix orientation.
Meme & caption.
Protect your brand.
Convert vectors.
Merge to document.
Create animations.
Convert your PNGs to WebP above for instant, massive file size reductions — or get the Pro app for automated workflows.
or click to browse from your device
Accepted: png