JPEG vs PNG: Complete Format Comparison
JPEG and PNG are the two most established image formats on the web. JPEG (also written as JPG) uses lossy compression optimized for photographs, while PNG uses lossless compression ideal for graphics and transparency. Choosing between them depends on your image content and delivery requirements.
Side-by-Side Comparison
| Feature | JPEG | PNG |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes |
| Best For | Photos | Graphics |
| File Size (photos) | Small | Very large |
| Quality Preservation | Some loss | Perfect |
| Re-save Degradation | Yes | No |
JPEG Pros
- +Small file sizes for photos
- +Universal compatibility
- +Adjustable quality
JPEG Cons
- -No transparency
- -Lossy only
- -Artifacts around text/edges
PNG Pros
- +Lossless quality
- +Transparency support
- +Perfect for graphics
PNG Cons
- -Large photo files
- -No lossy option
- -Overkill for photographs
When to Use JPEG
Use JPEG for photographs, complex images, and social media content where file size matters more than pixel-perfect quality.
When to Use PNG
Use PNG for logos, screenshots, diagrams, UI elements, and any image requiring transparency or lossless quality.
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