PNG vs SVG
Differences, use cases, and when to use each
PNG is a raster format (grid of pixels) that looks blurry when scaled up. SVG is a vector format (mathematical shapes) that stays crisp at any size. Choose based on the image content: photos need PNG; geometric graphics work better as SVG.
Quick Comparison
| Feature | PNG | SVG |
|---|---|---|
| Type | Raster (pixels) | Vector (paths) |
| Scaling | Quality degrades | Perfect at any size |
| Best For | Photos, screenshots | Icons, logos, illustrations |
| File Size (icons) | Larger per size variant | One small file for all sizes |
| CSS Styling | Not possible | Full CSS control |
| Animation | APNG (limited) | CSS/JS animation |
When to Use Each
When to Use PNG
Use PNG for photographs, screenshots, and complex images with many colors and gradients where raster representation is appropriate.
When to Use SVG
Use SVG for icons, logos, illustrations, charts, and any graphic with geometric shapes where resolution independence and CSS styling are valuable.
Pros & Cons
PNG
Handles photographic content
Universal support
Simple to create (screenshots)
Needs multiple sizes for responsive
Can't style with CSS
SVG
Resolution independent
CSS styleable
Tiny file size for simple graphics
Accessible text
Poor for photographs
XSS risk with user uploads
Verdict
SVG for geometric graphics (icons, logos, illustrations). PNG for photographic and complex raster content. Both have clear, non-overlapping use cases.