JPG vs PNG: Which Format Should You Choose?

Published: January 10, 2026 • 5 min read

Introduction

Choosing between JPG and PNG is one of the most common decisions when working with images. Both formats have distinct advantages and use cases. This guide will help you understand the key differences and choose the right format for your needs.

Key Differences

1. Compression Type

JPG (JPEG): Uses lossy compression, which means some image data is permanently discarded to reduce file size. This results in smaller files but can introduce artifacts, especially at lower quality settings.

PNG: Uses lossless compression, preserving all original image data. Files are larger but maintain perfect quality even after multiple saves.

2. Transparency Support

JPG: Does not support transparency. All transparent areas will be filled with a solid color (usually white or black).

PNG: Fully supports alpha channel transparency, making it ideal for logos, icons, and images that need to blend with different backgrounds.

3. File Size

JPG: Typically 50-80% smaller than PNG for photographs and complex images. Excellent for web use where bandwidth matters.

PNG: Larger file sizes, especially for photographs. However, for simple graphics with few colors, PNG can be smaller than JPG.

4. Image Quality

JPG: Best for photographs and images with gradients. Quality degrades with each save due to lossy compression.

PNG: Perfect for screenshots, text, line art, and graphics with sharp edges. Quality never degrades regardless of how many times you save.

When to Use JPG

• Photographs and complex images with many colors
• Social media posts where file size matters
• Email attachments that need to be small
• Website images where loading speed is critical
• Images that don't require transparency

When to Use PNG

• Logos and branding materials
• Images requiring transparency
• Screenshots and screen captures
• Graphics with text or sharp edges
• Images that will be edited multiple times
• Icons and UI elements

Conversion Tips

JPG to PNG: Convert when you need to add transparency or preserve quality for further editing. Note that file size will increase significantly.

PNG to JPG: Convert to reduce file size for web use. Be aware that transparency will be lost and you cannot recover the original quality later.

Conclusion

The choice between JPG and PNG depends on your specific needs. Use JPG for photographs where file size matters, and PNG for graphics requiring transparency or perfect quality preservation. Understanding these differences will help you optimize your images for any purpose.