Batch PNG to WebP converter & JPG to WebP converter free — up to 20 images at once. Quality control, lossless mode, ZIP download. No signup, no watermark.
High quality outputNo watermark20 images at onceZIP download
Use case:
Drop up to 20 images here
Batch PNG to WebP & JPG to WebP converter free. 100% browser-based. No signup, no watermark.
Choose Images
JPGPNGGIFBMP
0Images
0Converted
0 KBSpace Saved
0%Avg Reduction
Web & Blog — smaller files, images look identical
All images converted!
Download all WebP files as a single ZIP
Batch convert — up to 20 images
100% private — browser only
High quality output
ZIP download
Why use WebP
Why convert images to WebP for your website?
WebP is 25-80% smaller than JPG and PNG — Google recommends it for every website.
Faster website speed
Convert photos to WebP and reduce image size by 25-80%. Smaller images = faster page load = better Google ranking.
Better PageSpeed score
Google PageSpeed recommends WebP format. Use this WebP converter to improve your PageSpeed score and SEO ranking.
Same visual quality
Convert JPG to WebP without losing quality at 85%+ settings. Human eyes cannot tell the difference.
Universal browser support
All modern browsers support WebP — Chrome, Firefox, Safari, Edge. The standard format for the web in 2026.
FAQ
Frequently asked questions
Everything you need to know about converting images to WebP online free.
Upload your PNG files to this free PNG to WebP converter — drag and drop up to 20 images. Pick your use case, click Convert All. Download individual WebP files or all as ZIP. Free, no signup, no watermark.
Yes. Enable Lossless mode before converting — this gives pixel-perfect WebP output with zero quality loss. For near-lossless results set quality to 90-100%. At 85% quality the difference is invisible — files are 60-75% smaller than the original JPG.
This WebP image converter supports up to 20 images at once. Upload all your JPG, PNG, GIF or BMP files and convert image to WebP in one click. Download individually or as a single ZIP.
WebP is 25-80% smaller than JPG and PNG at the same visual quality. Google PageSpeed Insights flags non-WebP images and recommends converting to WebP for faster websites and better Google rankings.
Yes — 100% private and secure. All WebP conversion happens in your browser using the Canvas API. Your images never leave your device and are never uploaded to any server.
85% is the recommended default — files are 60-75% smaller with no visible quality difference. For photography use 90-95%. For web graphics use 75-85%. Enable Lossless for perfect pixel-accurate conversion.
Zappy's WebP converter supports JPG, JPEG, PNG, GIF and BMP input formats. All are converted to high quality WebP instantly. No signup required.