Dev Tools · Client-side
Image → WebP Converter
Convert PNG, JPG, GIF, and AVIF images to WebP in your browser. Smaller files load faster and improve your Core Web Vitals scores.
Drop images or click to browse
PNG, JPG, GIF, AVIF, BMP (multiple files supported)
Why WebP?
WebP images are 25–35% smaller than PNG and JPEG at the same visual quality. Smaller images mean faster page loads and better Core Web Vitals scores.
Quality guide
82% is the sweet spot for most web images. Use 90%+ for product photography or images where fine detail matters. 100% is lossless.
Browser support
WebP is supported in all modern browsers (Chrome, Firefox, Safari 14+, Edge). For older browsers, serve a JPEG fallback using <picture> elements.
Image Optimizer — Frequently Asked Questions
01Why convert images to WebP for websites?+
WebP produces significantly smaller files than JPEG or PNG at equivalent visual quality — typically 25–35% smaller than JPEG and 26% smaller than PNG. Smaller images improve Largest Contentful Paint (LCP), a Core Web Vitals metric that directly affects Google rankings and page load speed. Chrome, Edge, Firefox, and Safari all support WebP natively.
02What quality setting should I use?+
For hero images and large feature photos, 75–85 quality produces visually indistinguishable results at roughly 60–70% of the original file size. For product thumbnails and small UI images, 65–75 quality is usually sufficient. Use the side-by-side comparison in the tool to judge visually — file size reduction is shown in real time.
03Does converting to WebP affect image quality?+
WebP uses lossy compression by default (like JPEG). At quality 80+, most people cannot distinguish the difference from the original visually. At quality 60 and below, compression artifacts become noticeable on photos with gradients or fine detail. Line art, screenshots, and icons typically fare better than photos at lower quality settings.
04What about AVIF — is WebP still the best choice?+
AVIF offers even better compression than WebP but has slightly lower browser support and slower encoding. For 2025, WebP is the safest default: universal support, excellent compression, fast encoding. Use AVIF if you specifically need maximum compression for high-traffic image-heavy pages and can verify your user base's browser support.
05Are my images uploaded anywhere?+
No. All conversion happens entirely in your browser using the Canvas API. Your images are never sent to any server — they stay on your device. The tool works offline once the page is loaded.