WebP vs PNG
WebP vs PNG
WebP produces smaller files than PNG while still supporting transparency, making it better for the web. PNG remains the safest choice for maximum compatibility and lossless archival quality.
Reviewed by The convertimage Team · Updated June 2026
At a glance
Key differences
| Attribute | WebP | PNG |
|---|---|---|
| Compression | Lossy or lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | Yes | No |
| Best for | Web images needing small size and transparency | Logos, graphics, screenshots, transparency |
Guidance
When to use each format
Use WebP
Choose WebP for web images where page speed matters — it keeps transparency while cutting file size well below PNG.
Use PNG
Choose PNG when you need universal compatibility with older software, or a guaranteed lossless original.
File size
WebP is usually 25–35% smaller than PNG at visually identical quality, and supports both lossy and lossless modes.
Convert
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Questions
Frequently asked
- Which is better, WebP or PNG?
- WebP produces smaller files than PNG while still supporting transparency, making it better for the web. PNG remains the safest choice for maximum compatibility and lossless archival quality.
- Which is smaller, WebP or PNG?
- WebP is usually 25–35% smaller than PNG at visually identical quality, and supports both lossy and lossless modes.
- Can I convert between WebP and PNG for free?
- Yes. convertimage converts WebP and PNG images for free, right in your browser. Your files are never uploaded.