¶JPG to AVIF Converter

Convert JPG images to AVIF — the modern, highly-compressed image format that beats JPG and WebP on file size while maintaining quality. AVIF is supported in Chrome, Firefox, and Safari 16+. All conversion happens locally in your browser; your files are never uploaded.

¶How to Use

1. Upload your JPG files — drag and drop or click to select one or more .jpg or .jpeg images.
2. Choose a quality level — High (85%) gives excellent results with significant file savings.
3. Convert — click Convert All or convert files individually.
4. Download — save individual AVIF files or click Download All as ZIP.

¶Why Convert JPG to AVIF?

AVIF (AV1 Image File Format) is a next-generation image format that offers significant advantages over JPG:

• Much smaller files — AVIF is typically 40–60% smaller than JPG at equivalent visual quality.
• Better quality — At the same file size, AVIF preserves more detail, especially at lower bitrates.
• Wide support — Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+ all support AVIF.

Converting your JPG images to AVIF is one of the most impactful optimisations you can make to your website's image loading performance.

¶Browser Requirements

AVIF encoding requires Chrome 93+ or Firefox 93+. Safari supports AVIF display but not encoding via the Canvas API. If you are on Safari, you can use a different browser to encode your images.

¶Frequently Asked Questions

Will AVIF look as good as my original JPG?
At High (85%) quality the output will be virtually indistinguishable from the original while being substantially smaller. At lower settings you may notice slight differences in very complex areas.

Does AVIF support transparency?
Yes — AVIF supports an alpha channel, but JPG does not. Converting JPG to AVIF will not add transparency.

Are my files uploaded anywhere?
No. Everything runs in your browser via the Canvas API. Your files never leave your device.

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