How to convert JPG to AVIF
Follow these steps to convert JPG to AVIF:
- Add one or more JPG files — drag and drop them or click to browse.
- Click Convert to AVIF and let the conversion run in your browser.
- Download your new AVIF files individually or as a batch.
What is JPG?
JPG (also written JPEG) is the most widely used photo format on the web. It uses lossy compression that discards detail the human eye is unlikely to notice, producing small files that are perfect for photographs and complex images with smooth colour gradients.
What is AVIF?
AVIF is a next-generation image format based on the AV1 video codec. It offers the best compression available in a browser-supported format — often half the size of JPG — with support for transparency, wide colour gamut and HDR.
JPG vs AVIF: how they compare
Before converting, it helps to know how JPG and AVIF stack up. The table below breaks it down.
| JPG | AVIF | |
|---|---|---|
| Format type | Image | Image |
| Compression | Lossy | Lossy or lossless |
| Quality | Lossy | Lossless |
| Transparency | No | Yes |
| Best for | Photographs | High-efficiency web images |
Why convert JPG to AVIF?
The usual reason to turn JPG into AVIF is compatibility: AVIF is the right fit for high-efficiency web images and photography on modern sites.
What AVIF gives you: smallest files of any web format, transparency and HDR support and excellent detail retention.
Where JPG falls short: lossy — quality degrades each time you re-save, no transparency and compression artefacts on sharp edges and text. Converting keeps your content while moving to a format that matches where the file is going.
Tips for the best results
- AVIF is lossless, so your converted files keep every detail of the original JPG.
- You can convert several files in one go — add as many JPG files as you like and download them together.
- Everything runs locally in your browser, so even large files convert quickly and nothing is uploaded.
JPG to AVIF — frequently asked questions
- How do I convert JPG to AVIF?
- Add your JPG file, click Convert to AVIF, and download the AVIF result. The whole process happens in your browser and takes just a few seconds.
- Is it free to convert JPG to AVIF?
- Yes. This JPG to AVIF converter is completely free with no sign-up, no watermarks and no limit on the number of files you can convert.
- Are my JPG files uploaded to a server?
- No. Conversion runs entirely on your device using your browser, so your files never leave your computer or phone.
- Does converting JPG to AVIF reduce quality?
- No. AVIF is a lossless format, so the conversion preserves the full quality of your original JPG.
- Can I convert multiple JPG files at once?
- Yes. Add as many JPG files as you like and convert them in a single batch, then download each AVIF result.