SVG vs PNG: Which Image Format Should You Use? (Complete Comparison)
SVG or PNG? Learn the key differences, pros and cons, and when to use each format for web, print, and design projects.
Senior Graphics Engineer
Alex has 8+ years of experience in image processing and vector graphics. Former Adobe engineer with expertise in SVG optimization and conversion algorithms.
Choosing between SVG and PNG can significantly impact your website's performance and visual quality. This guide breaks down everything you need to know.
What is SVG?
SVG (Scalable Vector Graphics) is an XML-based vector format. Images are defined mathematically, not with pixels.
- Infinitely scalable without quality loss
- Can be styled with CSS
- Supports animation
- Typically smaller file size for simple graphics
What is PNG?
PNG (Portable Network Graphics) is a raster format using pixels.
- Supports transparency
- Better for complex images like photos
- Universal browser support
- Fixed resolution
When to Use SVG
- Logos — Scale perfectly on any device
- Icons — Crisp at any size, easy to color
- Illustrations — Clean, scalable graphics
- Animations — Interactive, CSS-controllable
- Responsive design — Adapts to any screen
When to Use PNG
- Photographs — Complex color gradients
- Screenshots — Pixel-perfect representation
- Complex textures — Detailed patterns
- Image editing output — Photoshop compositions
File Size Comparison
| Image Type | SVG | PNG | Winner |
|---|---|---|---|
| Simple logo | 2 KB | 15 KB | SVG |
| Complex icon set | 8 KB | 45 KB | SVG |
| Photograph | 500+ KB | 150 KB | PNG |
Performance Impact
For web use, SVGs typically load faster for logos and icons. Google recommends SVG for scalable graphics to improve Core Web Vitals scores.
Accessibility
SVGs can include title and description tags for screen readers, making them more accessible than PNGs.
Conclusion
Use SVG for logos, icons, and simple graphics. Use PNG for photos and complex images. For the best of both worlds, convert your logos to SVG with VectoSolve.