PNG vs WebP: Which Should You Use?

Side-by-side comparison of PNG and WebP image formats — features, pros, cons, and conversion options.

Quick Answer

PNG is best for Graphics with transparency, screenshots, and diagrams. WebP is best for Web images balancing quality and file size.

Quick Verdict

PNG Best for Graphics with transparency, screenshots, and diagrams

✓ Lossless compression
✓ Full transparency support
✓ Universal web support
✗ Larger than JPEG for photos

Convert PNG to WebP →

WebP Best for Web images balancing quality and file size

✓ Smaller than JPEG and PNG
✓ Supports lossy and lossless
✓ Animation and transparency
✗ Limited support in older browsers

Convert WebP to PNG →

Specs Comparison

Side-by-side technical comparison of PNG and WebP

Feature	PNG	WebP
Category	Image	Image
Year Introduced	1996	2010
MIME Type	image/png	image/webp
Extensions	.png	.webp
Lossy	✗	✓
Lossless	✓	✓
Transparency	✓	✓
Animation	✗	✓
Max Color Depth	16-bit	8-bit
Hdr	✗	✗

Pros & Cons

PNG

Pros

✓ Lossless compression
✓ Full transparency support
✓ Universal web support

Cons

✗ Larger than JPEG for photos
✗ No animation (use APNG)
✗ No lossy mode

WebP

Pros

✓ Smaller than JPEG and PNG
✓ Supports lossy and lossless
✓ Animation and transparency

Cons

✗ Limited support in older browsers
✗ Lower max quality than PNG for lossless
✗ Editing tool support still growing

When to Use Each

Choose PNG when...

You need files optimized for Graphics with transparency, screenshots, and diagrams
Lossless compression
Full transparency support
You need lossless quality

Choose WebP when...

You need files optimized for Web images balancing quality and file size
Smaller than JPEG and PNG
Supports lossy and lossless
You need lossless quality

How to Convert

Convert between PNG and WebP for free on ChangeThisFile

Convert PNG to WebP Runs in your browser — files never leave your device Convert WebP to PNG Runs in your browser — files never leave your device

Frequently Asked Questions

What's the difference between PNG and WebP?

PNG is best for Graphics with transparency, screenshots, and diagrams, while WebP is best for Web images balancing quality and file size. Both are image formats but they differ in compression, compatibility, and intended use cases.

Is PNG or WebP better for image?

It depends on your use case. PNG is better for Graphics with transparency, screenshots, and diagrams. WebP is better for Web images balancing quality and file size. Consider your specific requirements when choosing between them.

How do I convert PNG to WebP?

Go to the PNG to WebP converter on ChangeThisFile. The conversion runs entirely in your browser — your file never leaves your device. It's free with no signup required.

Can I convert WebP to PNG?

Yes. ChangeThisFile supports WebP to PNG conversion. The conversion runs in your browser with no upload required.

Which is smaller, PNG or WebP?

File size depends on the content and compression settings. PNG preserves full quality. WebP uses lossy compression for smaller files. For the smallest files, choose the format with lossy compression that meets your quality needs.

Does PNG support lossy?

No, PNG does not support lossy, whereas WebP does. This may be an important factor depending on your use case.

Is PNG or WebP free to use?

Both PNG and WebP are supported file formats that are free to use. You can convert between them for free on ChangeThisFile — browser-based conversions have no limits and your files never leave your device.

Which format is newer, PNG or WebP?

WebP is newer — it was introduced in 2010, while PNG dates back to 1996. Newer formats often offer better compression and features, but older formats tend to have wider compatibility.