Compress WebP Image Online Free

Google developed WebP in 2010 to solve a specific problem: JPEG and PNG produce unnecessarily large files for the web. WebP uses a more advanced compression algorithm (based on VP8 video compression) that produces images 25-35% smaller than JPEG and 25-50% smaller than PNG at equivalent visual quality.

Since 2024, WebP has been the default image format for Google's own products including Google Photos, YouTube thumbnails, and Google Shopping images. This adoption signals that WebP is the long-term standard for web images, not a niche format.

File size at equivalent quality: WebP wins by 25-35% over JPG and up to 50% over PNG. This means a 200KB JPG becomes a 130-150KB WebP with the same visual quality.

Transparency support: WebP yes, JPG no, PNG yes. WebP is the only format that combines good photo compression with transparency support.

Animation support: WebP yes (like GIF but much smaller), JPG no, PNG no (APNG is a workaround).

Compatibility: As of 2026, WebP is supported by 97%+ of browsers including Chrome, Firefox, Safari 14+, Edge, and Opera. JPG is 100% compatible with everything including email and legacy apps. PNG is 99%+ compatible.

For websites: use WebP. For email attachments, social media sharing, and printing: use JPG.

If you serve WebP on your website, use the HTML <picture> element to provide a JPG fallback for email clients and the rare unsupported browser:

<picture> <source srcset="image.webp" type="image/webp"> <img src="image.jpg" alt="..."> </picture>

For WordPress users, plugins like Smush, ShortPixel, and Imagify automatically convert and serve WebP with fallback. For Shopify, use the built-in Shopify CDN which serves WebP automatically to supporting browsers. For Next.js, the built-in <Image> component handles WebP conversion and fallback automatically.