JPG to AVIF Converter
Convert JPG images to AVIF — free, private, no upload required.
Drop your JPG image here or click to upload
Your files never leave your device. All conversion happens locally in your browser.
AVIF compresses photographs better than any other web format, often cutting JPG file sizes in half or more. For image-heavy sites, that means faster loading and better Core Web Vitals.
This free converter turns JPG into AVIF in your browser — private, local and without an account.
Why convert JPG to AVIF?
Converting JPG to AVIF dramatically reduces file size at similar quality, making it one of the biggest single wins for website performance.
When should you convert JPG to AVIF?
- You are optimising photos for a fast website.
- You want the smallest possible files at good quality.
- You can serve a WebP or JPG fallback to older browsers.
How to convert JPG to AVIF
- Add your JPG file – drag it onto the page or click to select it from your device.
- Choose AVIF – AVIF is pre-selected as the output format.
- Adjust the quality – move the quality slider for a smaller file or maximum detail.
- Convert and download – click convert and save your new AVIF file. Everything happens locally in your browser.
Your files are converted on your own device and never uploaded.
JPG vs AVIF at a glance
| Feature | JPG | AVIF |
|---|---|---|
| Compression | Lossy | Lossy and lossless (AV1) |
| Transparency | No | Yes |
| Animation | No | Yes |
| File size | Small | Very small |
| Compatibility | Almost universal | Modern browsers |
| Best for | Sharing, uploading, printing | Next-gen web images |
Tips for converting JPG to AVIF
Start at 50–65% quality
AVIF remains sharp at lower settings, so you can push the size down aggressively.
Watch for browser support
Use AVIF where encoding is supported (Chrome/Edge), and fall back to WebP elsewhere.
Resize before converting
Combine AVIF with resizing for the smallest possible result.
Frequently asked questions
Is JPG to AVIF conversion free?
Yes, free and unlimited.
Are my images uploaded?
No. Everything runs locally in your browser.
How much smaller is AVIF?
Often 40–60% smaller than JPG at similar quality.
Can older browsers show AVIF?
Very old browsers cannot, so provide a WebP or JPG fallback for full coverage.
Related guides
Convert JPG to AVIF now
Turn JPG photos into tiny AVIF files — free and private.
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