JPEG vs PNG โ Which Image Format Should You Use?
A detailed comparison of JPEG and PNG image formats covering compression methods, quality characteristics, transparency, and ideal use cases. Learn when to choose each format for web, print, and design projects.
Key Takeaways
- JPEG excels for photographs and images with smooth gradients where lossy compression artifacts are not noticeable.
- PNG is the right choice when you need transparency, pixel-perfect quality for screenshots and text, or lossless storage for graphics and logos.
- WebP offers both lossy and lossless compression with transparency support, often producing files 25-35% smaller than either JPEG or PNG.
Compress Image
Reduce image file size while keeping quality.
JPEG vs PNG at a Glance
| Feature | JPEG | PNG |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes (alpha) |
| Colors | 16.7M | 16.7M + alpha |
| Best for | Photos | Graphics, text |
| Typical size | Smaller | Larger |
When to Use JPEG
JPEG excels for photographs and images with smooth gradients where lossy compression artifacts are not noticeable. At quality 80-85, JPEG files are typically 5-10x smaller than equivalent PNGs for photographic content.
When to Use PNG
PNG is the right choice when you need transparency, pixel-perfect quality for screenshots and text, or lossless storage for graphics and logos. PNG files can be smaller than JPEG for images with large areas of solid color.
The Modern Alternative: WebP
WebP offers both lossy and lossless compression with transparency support, often producing files 25-35% smaller than either JPEG or PNG. Consider WebP when browser compatibility is not a concern.
Decision Flowchart
- Need transparency? โ PNG (or WebP)
- Photograph or complex image? โ JPEG (or WebP)
- Screenshot, logo, or text? โ PNG (or WebP lossless)
- Will be edited further? โ PNG (lossless master)