Convert JPG/PNG images to WebP online: 25-35% smaller files, batch conversion, quality control — processed locally in your browser.
TL;DR: Free JPG/PNG to WebP converter: 25-35% smaller files, batch and quality control, processed locally.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
使用指南
Convert JPG to smaller WebP: the same visual quality at 25-35% less size — the standard move for web image optimization. Batch conversion, quality control, fully local.
1. Conversion flow
- Drop JPG images (batch supported).
- Quality defaults to 90% (visually lossless); drop to 75-80% for smaller files.
- Compare sizes and download everything.
2. Where WebP fits
Fits: website assets (bandwidth and speed), app bundled images, blog media — every modern browser supports it. Think twice: images headed into legacy Office/Photoshop/print pipelines, or old Android WebViews. Rule of thumb: WebP for humans to view, JPG for software to chew.
3. One advanced use
- Site-wide WebP conversion is a high-ROI LCP lever: combined with dimension compression in our image-compressor, hero weight often halves with immediate speed gains.
FAQ
All mainstream browsers and most modern software support WebP in 2026. A few legacy tools (old Photoshop, some office systems) may not — confirm your target before converting.
25-35% smaller than JPG at equal quality, far smaller than PNG, with transparency and animation support. Ideal for web and app assets.
No — conversion runs entirely in your browser.