JPEG vs PNG vs WebP — Which Image Format Should You Use?

The Three Main Image Formats

Choosing the right image format can dramatically affect file size, quality, and compatibility. Here is everything you need to know.

JPEG (Joint Photographic Experts Group)

Best for: Photographs, complex images with gradients

Pros:

• Excellent compression for photos (10-20x smaller than uncompressed)
• Universal support across all devices and platforms
• Adjustable quality level

Cons:

• No transparency support
• Lossy compression (quality degrades with each save)
• Not ideal for text, logos, or sharp edges

When to use: Any photograph, social media images, email attachments

PNG (Portable Network Graphics)

Best for: Graphics, logos, screenshots, images needing transparency

Pros:

• Lossless compression (no quality loss)
• Supports transparency (alpha channel)
• Sharp edges and text render perfectly

Cons:

• Much larger file sizes than JPEG for photos
• No animation support (use APNG or GIF)

When to use: Logos, icons, screenshots, any image with text overlay, graphics with transparency

WebP

Best for: Web use where browser support is available

Pros:

• 25-34% smaller than JPEG at equivalent quality
• Supports both lossy and lossless compression
• Supports transparency (like PNG)
• Supports animation (like GIF)

Cons:

• Not supported by all software (improving rapidly)
• Some older browsers do not support it
• Not accepted by many exam/government portals

When to use: Website images, progressive web apps, any modern web project

Quick Decision Guide

Use Case	Recommended Format
Photograph for web	WebP (JPEG fallback)
Photo for email	JPEG
Logo or icon	PNG or SVG
Screenshot	PNG
Exam portal upload	JPEG (required)
Social media post	JPEG or WebP
Image with transparency	PNG or WebP

Converting Between Formats

You can convert between any of these formats using a browser-based converter. The tool uses the Canvas API to decode the source image and re-encode it in your target format.