Pick the wrong format and your images either look bad or slow your page to a crawl. Pick the right one and users never notice — which is the goal.
The one-line summary
- **JPG** for photographs.
- **PNG** for logos, icons, screenshots and anything with transparency.
- **WebP** for both, when you want smaller files.
Why WebP wins on size
WebP compresses photos ~25-35% smaller than JPG at the same quality, and PNGs ~20-30% smaller — while supporting transparency and animation. Every modern browser supports it.
When to still reach for JPG or PNG
- Sending a file to a non-technical recipient who'll open it in an old app.
- Uploading to a service that rejects WebP (a few CMSs still do).
- Print workflows — most printers expect JPG or TIFF.
Quick converter
Use [WebP Converter](/tools/webp-converter) to switch between formats, or [JPG ↔ PNG](/tools/jpg-png-converter) for the classic pair. If you're just trying to save bandwidth, [Image Compressor](/tools/image-compressor) is often enough.
Decision tree
1. Does it have transparency? → PNG or WebP.
2. Is it a photograph? → WebP first, JPG as fallback.
3. Is it a logo/icon under 512px? → PNG or SVG.
4. Is it going to print? → JPG at max quality or TIFF.
