JPG vs PNG: Which Format Should You Use?

The Great Format Debate: JPG vs PNG

You have finished editing your masterpiece. You hit "Save As", and you are presented with a dropdown list of acronyms: JPG, PNG, GIF, TIFF, BMP. The two most common choices for the web are JPG and PNG, but they serve very different purposes. Choosing the wrong one can lead to blurry images or unnecessarily massive files.

JPG (Joint Photographic Experts Group)

JPG is the standard for digital photography. It uses "lossy" compression, which means it discards some image data to reduce file size.

• Best For: Photographs, complex gradients, and images with millions of colors.
• Pros: Extremely small file sizes, universal compatibility.
• Cons: No transparency support; quality degrades with each save (generation loss).

PNG (Portable Network Graphics)

PNG was designed as an improvement over GIF. It uses "lossless" compression, meaning no image data is lost when saving.

• Best For: Logos, icons, text-heavy images, drawings, and screenshots.
• Pros: Supports transparency (alpha channel), crisp edges, no compression artifacts.
• Cons: File sizes can be significantly larger than JPGs for complex photos.

The Decision Matrix

Still unsure? Use this simple checklist:

• Does the image have a transparent background? YES -> Use PNG.
• Is it a photograph of a person or landscape? YES -> Use JPG.
• Is it a screenshot of an app or website? YES -> Use PNG (text remains sharp).
• Are you trying to save disk space? YES -> Use JPG (or WebP).

What About WebP?

WebP is a modern format from Google that combines the best of both worlds. It supports transparency like PNG and compresses better than JPG. It is now supported by all major browsers and is often the best choice for web performance.