PNG vs JPG vs WebP vs SVG: Which Image Format Should You Use?

Choosing the right image format can make your website faster, your photos sharper, and your storage smaller. Here's a practical guide to when to use each format.

JPG (JPEG) — Best for Photographs

• Compression: Lossy — discards some data for smaller files
• Transparency: Not supported
• Best for: Photos, complex images with gradients
• Avoid for: Text, logos, line art, screenshots with text
• Typical size: 100KB–2MB depending on quality setting

PNG — Best for Transparency and Sharp Edges

• Compression: Lossless — no quality loss
• Transparency: Full alpha channel support
• Best for: Logos, icons, screenshots, images with text
• Avoid for: Large photographs (file sizes will be huge)
• Typical size: 200KB–5MB

WebP — Best for Web Performance

• Compression: Both lossy and lossless modes
• Transparency: Supported (even in lossy mode)
• Best for: Web images — 25-35% smaller than JPG at similar quality
• Avoid for: Print, email attachments (not universally supported)
• Typical size: 50KB–1MB
• Browser support: 97%+ globally (all modern browsers)

SVG — Best for Logos and Icons

• Type: Vector — scales to any size without quality loss
• Transparency: Inherently supported
• Best for: Logos, icons, illustrations, diagrams
• Avoid for: Photographs (SVG is not a raster format)
• Typical size: 1KB–50KB (tiny!)

Quick Decision Table

The Bottom Line

1. Use WebP for web photos — smallest file size with great quality
2. Use PNG when you need transparency or pixel-perfect sharpness
3. Use SVG for logos and icons that need to scale infinitely
4. Use JPG for print and email where universal compatibility matters
5. Always provide a fallback when using WebP on the web