Why Image Format Choice Matters
Choosing the wrong format can make an image 10x larger than it needs to be, or destroy quality that could have been preserved. This guide covers every major format in plain language.
JPEG / JPG
**Created**: 1992 | **Best for**: Photos, product images, backgrounds
JPEG uses lossy compression — permanently removing data to achieve smaller file sizes. At quality 80, photos are 60–80% smaller than quality 100 with barely visible loss.
✅ Universal browser and device support
✅ Small file sizes for photos
❌ No transparency
❌ Compression artifacts at low quality
❌ Not lossless — can't edit repeatedly without degradation
PNG
**Created**: 1996 | **Best for**: Logos, screenshots, UI graphics, images needing transparency
PNG uses lossless compression — no data is discarded. Every pixel is preserved exactly. Supports full alpha transparency.
✅ Lossless — perfect quality
✅ Full alpha transparency (8-bit)
✅ Great for sharp text and graphics
❌ Very large for photographs
❌ No animation support (use APNG for that)
WEBP
**Created**: 2010 by Google | **Best for**: All web images
WEBP supports both lossy and lossless compression, plus transparency and animation. Consistently outperforms JPEG and PNG.
✅ 25–35% smaller than JPEG at equivalent quality
✅ 25% smaller than PNG for lossless
✅ Supports transparency
✅ Supported by all modern browsers
❌ Not supported in some email clients
❌ Older browsers (IE, Safari <14) lack support