PNG vs. WebP
Lossless transparency, the established way vs. the smaller-file way.
Image Tools
Both formats support transparency, but WebP generally produces smaller files for the same content — either through its own lossless mode or through lossy compression PNG doesn't offer at all. PNG remains the safer default where an app or workflow specifically expects it.
PNG
Best for
- Software or workflows that specifically require PNG (some design tools, older CMSs)
- Maximum compatibility for transparent images outside the browser
Trade-offs
- Larger files than WebP for equivalent content, since PNG has no lossy mode to shrink further
WebP
Best for
- Web images needing transparency where file size still matters
- Modern sites wanting smaller assets without giving up transparency
Trade-offs
- Not accepted everywhere non-browser software might expect an image (some older desktop tools)
| Dimension | PNG | WebP |
|---|---|---|
| Transparency | Supported | Supported |
| Lossy option | No — lossless only | Yes — lossy or lossless |
| Typical file size | Larger | Smaller |
Verdict
For web delivery, WebP is usually the better choice when you need transparency — same visual capability as PNG, smaller files. Stick with PNG when a specific tool or workflow in your pipeline requires it.