Image Formats: WebP, AVIF, JPEG and PNG Compared
Choosing the right image format is a quiet but powerful way to keep your site fast and looking sharp. Each format suits different kinds of image and balances quality against file size differently.
Modern formats like WebP and AVIF can be dramatically smaller than older ones at the same quality, which speeds up your pages.
Which Format for What
- JPEG — reliable for photographs, widely supported.
- PNG — best for logos, graphics and anything needing transparency.
- WebP — smaller than JPEG and PNG, with broad modern support.
- AVIF — the smallest of all at good quality, support is growing fast.
How We Use Them
We serve modern formats to browsers that support them and fall back to JPEG or PNG for the rest, so everyone gets a fast, working page.
| Format | Best for | Relative size |
|---|---|---|
| JPEG | Photos | Baseline |
| PNG | Graphics, transparency | Larger |
| WebP | Photos and graphics | ~25–35% smaller |
| AVIF | Photos | ~50% smaller |
If you need a hand with any of this, your Progressive Robot delivery team is ready to help. Raise a ticket from the Support area of your client portal or speak to your account manager and we will guide you through the next steps.