To convert JPEG to WebP, run npx optimo photo.jpg --format webp. WebP often reduces JPEG size at similar perceived quality. Optimo handles format conversion and optimization in a single step.
Command
Convert a file by targeting the output format:
npx optimo photo.jpg --format webp
Tip: add --dry-run to preview changes.
Why convert?
- WebP often reduces JPEG size at similar perceived quality.
- A good upgrade when you control delivery and want smaller files.
Format notes
JPEG
The classic photo format: widely supported, good quality-to-size for photographs.
Optimize JPEG Compress JPEG Resize JPEG JPEG guide
WebP
Modern image format with great compression and broad browser support.
Optimize WebP Compress WebP Resize WebP WebP guide
Not sure which to use?
If you're choosing a delivery format, here's a quick comparison.