How to convert JPEG to AVIF online

AVIF (AV1 Image File Format) achieves roughly 50% smaller files than JPEG at equivalent visual quality, making it the most efficient image format for web delivery as of 2026. All major browsers support it. The trade-off is longer encoding time — AVIF takes more CPU to compress than JPEG or WebP. This guide explains how to convert any JPEG to AVIF using the quickhelp.dev Image Converter.

Step-by-step guide

1. Upload your JPEG: Go to quickhelp.dev/image-converter and upload your JPEG file (up to 3 MB).
2. Select AVIF as output: Choose 'avif' from the output format list. Start with quality 70 — AVIF's perceptual quality is higher than JPEG at the same numeric value, so 70 often looks like JPEG at 85.
3. Download and test: Download the AVIF file and test it in your browser. If the quality looks wrong, re-convert at a higher or lower quality setting.

Frequently asked questions

How much smaller is AVIF compared to JPEG?

Typically 40–60% smaller at equivalent quality for photographs. For illustrations with flat areas of color, savings can exceed 70%.

Can I use AVIF everywhere?

AVIF is supported in Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+. For older browsers, serve WebP as a fallback using a picture element.