AVIF is the new standard for web images — it delivers 50% smaller file sizes than JPG at equivalent visual quality. Converting your existing JPG images to AVIF can dramatically improve your website's loading speed without any visible quality difference.
Why Convert to AVIF?
- 50% smaller file sizes than equivalent JPG at the same quality
- Better quality than JPG at the same file size
- Supports transparency (like PNG) in addition to photographic quality
- Supports HDR colour and wide colour gamut
- Passes Google PageSpeed image format tests
AVIF Browser Support in 2025
AVIF is now supported by Chrome, Firefox, Edge, and Safari — covering over 95% of web users. WordPress automatically converts to AVIF when your hosting supports it. For websites targeting modern audiences, AVIF is the best format choice for photographs.
How to Convert JPG to AVIF Free
Upload your JPG to imgresizr.com. Open the Convert tool and select AVIF as the output format. Set quality to 80% — AVIF's efficient compression means 80% produces the same visual result as JPG at 95%. Download and use the AVIF for your website. Remember to provide a JPG fallback for older browsers using the HTML picture element.
JPG vs AVIF File Size Comparison
| Format | Quality Setting | Typical Size (1920×1080) |
|---|---|---|
| JPG | 85% | 200–400 KB |
| WebP | 85% | 150–300 KB |
| AVIF | 80% | 80–180 KB |
Convert JPG to AVIF for free at imgresizr.com and immediately improve your website's loading speed.