Both SVG and PNG are widely used image formats, but they serve very different purposes. Understanding when to use each can save you file size, improve quality, and ensure compatibility across all platforms.
SVG (Scalable Vector Graphics) describes images using mathematical formulas rather than pixels. A circle isn't stored as a grid of colored dots — it's stored as "center point + radius + fill color." This means SVG images can scale to any size without losing sharpness.
PNG (Portable Network Graphics) is a raster format that stores images as a grid of pixels. Each pixel has a defined color and position. PNG supports lossless compression and transparency through an alpha channel, making it excellent for web graphics.
| Feature | SVG | PNG |
|---|---|---|
| Image type | Vector (math-based) | Raster (pixel-based) |
| Scalability | Infinite, no quality loss | Fixed resolution |
| File size | Small for simple graphics, large for complex | Medium to large |
| Transparency | Yes | Yes (alpha channel) |
| Editability | Edit paths, shapes, and text with code or vector editors | Pixel-level editing only |
| Browser support | All modern browsers | Universal (every browser, every version) |
| Best for | Logos, icons, diagrams, illustrations | Photos, screenshots, final delivery assets |
| Print quality | Perfect at any size | Resolution-dependent; needs high DPI for print |
Use SVG when you need scalable graphics that will be displayed at multiple sizes — logos, icons, UI elements, charts, and diagrams. SVG is also ideal when you need to edit the graphic later or animate it with CSS or JavaScript.
Convert to PNG when you need universal compatibility: email clients, social media uploads, legacy software, or when you need a fixed-resolution asset for a specific layout. PNG also works better for complex images with gradients, shadows, and many color variations that would make SVG files impractically large.
For modern websites: use SVG for logos and icons (smaller files, crisp on Retina displays) and PNG or WebP for photographs and hero images. SVGs are also easier to compress with GZIP since they're XML text.
Need to convert between formats? SVG2PNG.org lets you convert SVG to PNG, JPG, or WebP instantly in your browser — no upload, completely free.