APNG vs WebP: Which Should You Use?

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

Quick Answer

APNG is best for High-quality animated images with transparency. WebP is best for Web images balancing quality and file size.

Quick Verdict

APNG Best for High-quality animated images with transparency

✓ Animated PNG with full alpha transparency
✓ Backward compatible with PNG
✓ Better quality than GIF
✗ Larger file size than GIF

Convert APNG 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

Specs Comparison

Side-by-side technical comparison of APNG and WebP

Feature	APNG	WebP
Category	Image	Image
Year Introduced	2004	2010
MIME Type	image/apng	image/webp
Extensions	.apng	.webp
Lossy	✗	✓
Lossless	✓	✓
Transparency	✓	✓
Animation	✓	✓
Max Color Depth	32-bit	8-bit
Hdr	✗	✗

Pros & Cons

APNG

Pros

✓ Animated PNG with full alpha transparency
✓ Backward compatible with PNG
✓ Better quality than GIF

Cons

✗ Larger file size than GIF
✗ Limited editor support
✗ Not supported in all browsers

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 APNG when...

You need files optimized for High-quality animated images with transparency
Animated PNG with full alpha transparency
Backward compatible with PNG
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 APNG and WebP for free on ChangeThisFile

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

Frequently Asked Questions

What's the difference between APNG and WebP?

APNG is best for High-quality animated images with transparency, 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 APNG or WebP better for image?

It depends on your use case. APNG is better for High-quality animated images with transparency. WebP is better for Web images balancing quality and file size. Consider your specific requirements when choosing between them.

How do I convert APNG to WebP?

Go to the APNG 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 APNG?

Direct conversion from WebP to APNG is not currently supported. Check the conversion pages for available routes using intermediate formats.

Which is smaller, APNG or WebP?

File size depends on the content and compression settings. APNG 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 APNG support lossy?

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

Is APNG or WebP free to use?

Both APNG 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, APNG or WebP?

WebP is newer — it was introduced in 2010, while APNG dates back to 2004. Newer formats often offer better compression and features, but older formats tend to have wider compatibility.