Convert PNG, JPG to WebP instantly. Reduce image size by up to 85% to improve Core Web Vitals and Google rankings. No server upload required.
Supports PNG, JPG, JPEG, BMP.
Batch processing available.
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WebP is a modern image format that provides superior lossless and lossy compression for images on the web. Using WebP, webmasters and web developers can create smaller, richer images that make the web faster.
Google prioritizes fast-loading sites. Compressing images boosts your LCP (Largest Contentful Paint) score instantly.
WebP lossless images are 26% smaller than PNGs. WebP lossy images are 25-34% smaller than comparable JPEG images.
All conversions happen locally in your browser via JavaScript. Your photos are never uploaded to our servers.
Our advanced engine uses the browser's native capabilities to re-encode images without sending data across the internet. It's the fastest and safest way to optimize your assets.
Drag and drop your PNG or JPG files.
We convert them to WebP instantly.
Save your optimized images.
Yes, KoJi Academy WebP is 100% free to use. There are no hidden fees, subscriptions, or limits on the number of images you can convert.
By default, we use a smart compression ratio (approx 80%) that significantly reduces file size while maintaining visual quality that is nearly indistinguishable to the human eye.
Yes! WebP is now supported by all modern browsers including Chrome, Firefox, Edge, and Safari (macOS Big Sur and iOS 14+).