WebP File Format Explained
WebP is a modern image format developed by Google in 2010. It produces images 25–35% smaller than JPG and 50%+ smaller than PNG at equivalent visual quality, while supporting both lossy and lossless compression + transparency.
WebP Size Comparison (same photo)
| Format | Typical Size | vs WebP | Quality |
|---|---|---|---|
| WebP (lossy) | ~60 KB | — | Excellent |
| JPG (85%) | ~80 KB | +33% | Excellent |
| PNG | ~180 KB | +200% | Perfect (lossless) |
| GIF | ~250 KB | +317% | Limited (256 colors) |
* Typical sizes for a 1920×1080px photograph. Actual savings vary.
WebP Browser Support
Chrome
v17 (2012)
Firefox
v65 (2019)
Safari
v14 (2020)
Edge
v18 (2018)
iOS Safari
iOS 14+
IE 11
Never
96%+ of global users have WebP support. Safe to use as primary web format.
Convert to WebP for Free
FAQ
Should I use WebP for my website?
Yes, for almost all cases. WebP reduces page load time significantly. Use it for photos, thumbnails, and background images.
Does WebP support transparency?
Yes! WebP supports full alpha channel transparency, just like PNG — but at much smaller file sizes.
Can WebP animate like GIF?
Yes, WebP supports animation. Animated WebP is much smaller than GIF and supports millions of colors.
Does YouTube support WebP thumbnails?
No. YouTube only accepts JPG and PNG for thumbnails. Convert WebP to JPG before uploading.