Choose PNG for
- Screenshots and diagrams
- Transparent source graphics
- Lossless editing
- Archival master files
PNGversusWebP
PNG vs WebP: Which Format Is Better for the Web?
Compare PNG and WebP for transparency, screenshots, web performance, image quality and browser delivery before choosing a format.
Quick decision
Choose PNG when you need lossless editing, predictable compatibility or pixel-perfect graphics. Choose WebP when reducing website image weight is the priority and your publishing workflow supports modern formats.
Feature comparison
Feature
PNG
WebP
Compression
Lossless
Lossy or lossless
Transparency
Supported
Supported
Typical web size
Often larger
Often smaller
Editing workflow
Strong source format
Best used as a delivery format
Best fit
Sharp graphics and masters
Optimised website assets
Choose WebP for
- Faster web pages
- Responsive image delivery
- Photo and graphic optimisation
- Modern CMS workflows
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Frequently asked questions
Is WebP always smaller than PNG?
Not always. WebP often reduces web delivery size, but the result depends on the image, export mode and quality settings. Flat graphics may compress differently from photographs.
Should I delete the original PNG after converting to WebP?
Keep the PNG when it is your editable or archival source. Use WebP as an optimised delivery copy for websites and supported applications.
Can WebP preserve transparency?
Yes. WebP can preserve transparent areas, but you should inspect edges and shadows after conversion before replacing production assets.