Convert Image to WebP Online Free
Convert JPG, PNG, or any image to WebP for smaller file sizes without visible quality loss. Batch convert up to 10 files. Free, no signup, files never leave your browser.
🔒 Your files never leave your browser. All processing is done locally.
How to Convert an Image to WebP
- 1
Upload your images
Click the upload zone or drag and drop up to 10 images (JPG, PNG, etc.). Your files stay on your device.
- 2
Convert to WebP
Click "Convert to WebP". Each image is encoded in your browser at 85% quality — a good balance of size and sharpness.
- 3
Download
Download each .webp file individually or click "Download All (.zip)" to get all files in one archive.
WebP has become the preferred image format for the web. Google developed it specifically to deliver smaller file sizes without visible quality degradation. Switching from JPG or PNG to WebP can reduce your image payload by 25–35%, directly improving page load speeds and Core Web Vitals scores.
Browser support: WebP is supported in Chrome, Firefox, Safari 14+, Edge, and Opera — effectively all modern browsers. For maximum compatibility on older browsers, serve WebP with a JPG fallback using <picture>.
Transparency: WebP supports full alpha transparency, so PNG images with transparent areas convert cleanly without a white fill — unlike JPEG.
How it works:The tool renders your image on an HTML Canvas and exports it as WebP at 85% quality using the browser's native WebP encoder. 85% quality is the sweet spot — indistinguishable from the source in most use cases, with significant size savings.