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JPG vs WebP for the Web
Choose JPG or WebP for website images. LCP, fallbacks, and CMS export tips with measured file sizes.
Updated 2026-05-26
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Side-by-side comparison
| Factor | JPG | WEBP |
|---|---|---|
| file_size | Good baseline | Often 25–35% smaller at similar visual quality |
| browser_support | Universal | All modern browsers; use picture fallback |
| cms_export | Default everywhere | Growing; theme/CDN dependent |
| lcp_impact | Heavier heroes hurt LCP | Smaller bytes help LCP when served correctly |
| email_compatibility | Safe in newsletters | Limited client support |
When to use which
- marketing site hero photos: WEBP
- email and legacy CMS: JPG
- maximum compatibility without picture element: JPG
- Core Web Vitals focused landing pages: WEBP
FAQ
- Should I use WebP on my site?
- Yes for photo-heavy pages when you can serve a JPG/PNG fallback or use the picture element.
- Is JPG still fine in 2026?
- Yes for compatibility and email; WebP wins for bandwidth on modern browsers.
- What about SEO?
- Google supports both; pick format for speed and UX — see our image format for SEO guide.
- When is JPG the winner?
- Email templates, legacy CMS exports, and anywhere you cannot control picture/srcset fallbacks.