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WebP

A Google-developed image format that creates smaller file sizes than JPEG and PNG.

What is WebP?

WebP is a modern image format developed by Google that provides superior compression compared to JPEG and PNG formats. WebP supports both lossy and lossless compression modes, transparency, and animation capabilities. The format typically reduces file sizes by 25–35% compared to JPEG while maintaining equivalent visual quality.

Importance of WebP

WebP format significantly reduces your image file sizes, leading to faster website loading times and improved user experience. Without WebP optimization, your web images consume unnecessary bandwidth and storage space, while WebP compression can decrease loading times by up to 35% compared to traditional JPEG files. This improvement directly impacts your site's performance metrics and search engine rankings.

WebP in Practice

A typical 2MB JPEG photo compressed to WebP format results in a 1.3–1.5MB file while preserving the same visual quality. Social media platforms like Facebook and Instagram automatically convert uploaded images to WebP to reduce bandwidth costs. With browser support reaching 95% globally by 2026, WebP has become the preferred format for web delivery across major platforms.

WebP Best Practices

  • → Convert JPEG images to WebP for web delivery to reduce file sizes by 25–35%.
  • → Use lossy WebP compression for photographs and lossless WebP for graphics with transparency.
  • → Implement WebP with JPEG fallbacks for maximum browser compatibility.

Example of WebP

A product photo measuring 1920×1080 pixels saved as JPEG at 85% quality produces a 450KB file. Converting the same image to WebP lossy compression creates a 295KB file with identical visual quality—a 34% reduction in file size. This size difference multiplied across dozens of product images can reduce total page weight from 15MB to under 10MB.

Related Terms

JPEG / JPGPNGAVIFLossy compressionLossless compression

Frequently Asked Questions

What is WebP format

WebP is an image format created by Google that provides better compression than JPEG and PNG while maintaining image quality. It supports both lossy compression for photographs and lossless compression for graphics. WebP files are typically 25–35% smaller than equivalent JPEG files and work in all major web browsers as of 2026.

WebP vs JPEG quality

WebP provides equivalent visual quality to JPEG while producing files that are 25–35% smaller in size. Both formats use lossy compression, but WebP's advanced compression algorithms preserve more image detail at smaller file sizes. The quality difference is imperceptible to most users, making WebP the superior choice for web delivery.

Do all browsers support WebP images now

Yes, WebP browser support reached approximately 95% globally by 2026, including all major browsers like Chrome, Firefox, Safari, and Edge. The remaining 5% consists primarily of older browser versions and legacy systems. For maximum compatibility, many websites still implement WebP with JPEG fallbacks for unsupported browsers.