image/4/io
Format Comparisons· Comparison

PNG vs WebP for website images

When lossless PNG still makes sense and when WebP should replace it for web delivery.

PNG is still useful, but teams often keep it in places where WebP would cut weight with no meaningful downside. The distinction is usually delivery versus editing.

Default pick

WebP for delivered web graphics and screenshots

Keep PNG for

Lossless editing, alpha-critical sources, exact UI captures

Watch closely

Transparency quality and screenshot text clarity

Decision rule

Use PNG when the source must remain lossless or when the workflow depends on exact pixel reproduction. Use WebP when the image is simply being delivered on the web and byte savings matter.

Where WebP usually wins

  • Decorative graphics with transparency.
  • Marketing images that do not need lossless preservation.
  • UI imagery that can tolerate efficient web delivery without staying archival.

Where PNG still wins

  • Master assets that will be edited repeatedly.
  • Precise screenshots or diagrams where every edge matters.
  • Workflows that still break when transparency or color handling shifts.

Checklist

  • Keep PNG as a source when exact lossless editing matters.
  • Default to WebP for delivered graphics where possible.
  • Check small text and UI edges after compression.
  • Do not keep PNG in delivery by habit alone.

Common mistakes

  • Using PNG for every transparent asset by reflex.
  • Converting screenshots too aggressively and hurting legibility.
  • Confusing source-format needs with delivery-format needs.

Quick answers

Is WebP always better than PNG?

Not for every workflow. PNG still matters for lossless editing and some exact screenshots, but WebP is usually the better delivered asset.

What is the best way to decide?

Ask whether the file is a source asset or a delivery asset. The answer often changes once that role is clear.