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Über das WebP-Format

WebP is a modern image format developed by Google that provides superior lossless and lossy compression for web images. Using WebP, web developers can create smaller, richer images that make the web faster and more efficient.

Key Features of WebP

Überlegene Kompression

WebP lossless images are 26% smaller in size compared to PNG. WebP lossy images are 25-34% smaller than comparable JPEG images at equivalent SSIM quality index.

Transparenz-Unterstützung

WebP supports transparency (alpha channel) with both lossy and lossless compression, often requiring significantly fewer bytes than PNG.

Animations-Unterstützung

WebP offers animation capabilities similar to GIF but with significantly better compression efficiency, making it ideal for simple animations and animated stickers.

Farbprofil-Unterstützung

WebP supports ICC color profiles for accurate color reproduction across devices and browsers, essential for professional photography and brand consistency.

Geschichte und Entwicklung

Google announced the WebP format in September 2010 as a new open format to reduce the file size of images on the web, ultimately leading to faster page loads. The format was based on technology from the VP8 video codec, which Google acquired through the purchase of On2 Technologies.

Since its introduction, WebP has seen continuous improvements in quality, compression efficiency, and feature support. The format has steadily gained adoption among major websites and platforms seeking to optimize performance.

Browser-Unterstützung

WebP is now supported by all major browsers, making it a viable format for most web projects:

BrowserVersionUnterstützung
Chrome23+Vollständige Unterstützung
Firefox65+Vollständige Unterstützung
Edge18+Vollständige Unterstützung
Safari14+Vollständige Unterstützung
Opera12.1+Vollständige Unterstützung

Best Practices for Using WebP

Fallbacks für ältere Browser bereitstellen

Use the <picture> element or CSS media queries to provide JPEG or PNG fallbacks for browsers that don't support WebP.

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

Die richtigen Qualitätseinstellungen wählen

For lossy WebP, a quality setting of 75-85 typically provides a good balance between file size and visual quality. For lossless WebP, consider the importance of perfect reproduction vs. file size.

Responsive Bilder verwenden

Combine WebP with responsive image techniques to serve appropriately-sized images based on the user's device.

Why Convert WebP to Other Formats?

Despite the advantages of WebP, there are several reasons why you might need to convert WebP images to other formats:

  • Software Compatibility: Some desktop software, graphics editors, or content management systems may not support WebP.
  • Social Media: Not all social media platforms support WebP uploads.
  • Printing: Print services often prefer traditional formats like JPEG or TIFF.
  • Legacy-Systeme: Ältere Systeme oder spezialisierte Anwendungen funktionieren möglicherweise nur mit etablierten Formaten.
  • Kundenanforderungen: Kunden oder Stakeholder könnten speziell traditionelle Bildformate anfordern.

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