Choosing the right image format can cut file sizes significantly without visible quality loss.
Formats compared
| Format | Best for | Notes |
|---|---|---|
| JPG | Photos | Universal support; lossy |
| PNG | Logos, graphics with transparency, screenshots | Larger files for photos |
| WebP | Photos and graphics | Smaller than JPG and PNG; supported by modern browsers |
| AVIF | Photos | Often smaller still; support is good in modern browsers |
| SVG | Icons, logos, simple illustrations | Scalable vector; tiny files |
Practical approach
- Use WebP for most photos and graphics.
- Use SVG for logos and icons.
- Provide fallbacks only if you must support very old browsers.
Convert and compress
Convert with our image format converter and compress with our image compressor.
Size matters too
A perfectly compressed 4000-pixel image displayed at 800 pixels still wastes data. Resize first.
Read image SEO.
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