WebP vs JPEG: Should You Make the Switch?

Comparing the web's legacy format with its modern replacement

Overview

JPEG has dominated web images since the early 1990s. WebP, developed by Google in 2010, was designed as a direct replacement offering better compression and additional features like transparency. With over 97% browser support in 2026, WebP is now a practical choice for virtually all web projects.

Compression Comparison

WebP achieves 25-35% smaller files than JPEG at equivalent visual quality. This advantage comes from WebP's VP8 compression, which handles color data and edge transitions more efficiently than JPEG's DCT-based approach.

When to Use WebP

Choose WebP as your default web image format when you need a good balance of compression, compatibility, and speed. WebP encoding is fast enough for real-time processing pipelines and CDN-based conversion. It's the practical upgrade from JPEG for most web projects.

When to Keep JPEG

Keep JPEG when sharing images via email, messaging apps, or platforms that may not support WebP. JPEG also remains the standard for photography workflows, print, and archival storage where universal software support matters most.

Best Practice: Serve WebP with JPEG Fallback

Use the HTML <picture> element to serve WebP to supported browsers with a JPEG fallback. For maximum compression, add AVIF as a first choice:

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