2026-05-31 · 1 min read
Image format conversion for faster pages
Serve WebP or AVIF to modern browsers while keeping PNG fallbacks for email and legacy clients.
imagesperformanceWebP
Key takeaways
- Convert after you pick correct dimensions—format change alone rarely fixes oversized heroes.
- Compress once for web, keep masters lossless in your asset repo.
Lightweight image pipeline
Resize to display width, compress, then convert format for production CDN upload.
Track LCP element separately—hero images dominate most tool-site scores.
FAQ
WebP or AVIF?
AVIF wins bytes; WebP has broader tooling support—test target browsers.
Is upload required?
Format conversion runs server-side; check size limits before batch jobs.