Comparisons· 3 min read
imageSVGvectorformat-guide
Vector vs Raster Images: What's the Difference and When to Use Each
Understand the key differences between vector and raster images, when to use SVG vs PNG vs JPG, and how to convert between them.
What Are Raster Images?
Raster (or bitmap) images are made up of a grid of tiny pixels. Each pixel has a specific color value, and together they form the complete image. Common raster formats include JPG, PNG, WebP, GIF, BMP, and TIFF.
- Resolution-dependent — quality degrades when scaled up
- Ideal for photographs and complex images with gradients
- File size increases with resolution (more pixels = larger file)
- Cannot be scaled infinitely without losing quality
What Are Vector Images?
Vector images are defined by mathematical equations that describe points, lines, curves, and shapes. Common vector formats include SVG, EPS, AI, and PDF (when containing vector data).
- Resolution-independent — scale to any size without quality loss
- Ideal for logos, icons, illustrations, and typography
- Very small file sizes for simple graphics
- Perfect for print at any size or resolution
Vector vs Raster Comparison
| Feature | Vector | Raster |
|---|---|---|
| Scaling | Infinite — no quality loss | Limited — pixelates when enlarged |
| File Size | Small for simple graphics | Depends on resolution and complexity |
| Best For | Logos, icons, illustrations, text | Photographs, detailed images, textures |
| Web Support | SVG widely supported | All formats supported |
| Editing | Edit shapes and paths directly | Edit individual pixels |
| Animation | Limited (CSS/SMIL animations) | GIF, APNG, WebP animation |
When to Use Each
- Use vector (SVG/EPS/AI) for: logos, icons, infographics, charts, typography, UI elements, and print materials
- Use raster (JPG/PNG/WebP) for: photographs, detailed artwork, textures, screenshots, and complex visual content
- Convert vector to raster when: you need to embed the image in a document, use it on social media, or display it on platforms that don't support SVG
- Convert raster to vector when: you need to scale a logo or icon to any size without losing quality
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