JPEG vs WebP: A Complete Compression Guide
Side-by-side comparison of JPEG vs WebP file sizes, quality, use cases, and compression performance to help you choose the best format.
Quick verdict
WebP outperforms JPEG for web delivery in every metric. Switch to WebP for 25–35% size savings. Keep JPEG for email and maximum platform compatibility.
Key Differences
| Aspect | JPEG | WEBP |
|---|---|---|
| Web file size | Larger — baseline format | 25–35% smaller at same quality |
| Transparency | Not supported | Full alpha support |
| Browser support | 100% — universal | 95%+ modern browsers |
| Email clients | All email clients | Not supported by Outlook |
| CMS support | Universal | WordPress 5.8+, modern CMSes |
Use JPEG when:
Email campaigns, legacy platforms, apps requiring universal image support
Use WEBP when:
Modern web delivery, CMS media libraries, e-commerce storefronts, blog content
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Frequently Asked Questions
JPEG remains relevant for email, print, and legacy system compatibility. For modern web delivery, WebP is the better choice — smaller files with equal or better quality. AVIF is emerging as the next step beyond WebP.
WebP files are typically 25–35% smaller than JPEG at equivalent visual quality. For some images, especially those with large areas of similar color, savings can reach 40–50%.