To convert JPG to AVIF, drop your photo in, choose a quality, and click Convert to AVIF. AVIF can cut a photo's size a lot at similar quality. It runs in your browser, and the page tells you honestly if the result isn't smaller.
Why convert JPG to AVIF?
AVIF uses a newer compression method than JPG, so the same photo can take much less space. That helps website speed, storage, and bandwidth.
- Images on a website, where lighter pages load faster.
- Photo libraries and backups you want to shrink.
- Sharing pictures in apps that support AVIF.
Browsers can open AVIF widely now, but not every editor, email app, or upload form can. Keep your JPG originals for those.
How to convert JPG to AVIF
- Click Select File, or drag your JPG into the drop zone.
- Set the quality and a speed. Fast is quickest, Balanced is the default, and Smallest takes longer but makes the smallest file.
- Click Convert to AVIF, compare the sizes, then click Download.
How this works in a browser
Browsers can't save AVIF files on their own, so the page loads a small encoder, about 1 MB, the first time you convert. It runs in the background, so the page doesn't freeze, and everything stays on your device. Encoding AVIF is slower than making a JPG, and bigger photos take longer. Images above 50 megapixels are refused to keep your browser stable.
Once done, you see the original size, the new size, and the percentage saved. If AVIF ends up no smaller, the page says so, and you can try a lower quality or keep the JPG.
Tips
- Start around quality 60 and raise it if you see softness.
- Photos with lots of fine noise shrink less than smooth ones.
- Need broader support? JPG to WebP is another smaller format that more tools accept.
- Turn AVIF back into JPG with AVIF to JPG when a site rejects it.
See how these formats compare in our image format guide.
Frequently asked questions
How much smaller is AVIF than JPG?
Often around half at similar quality, though it depends on the photo. The page shows the exact result after converting.
Will every website and app accept AVIF?
No. Modern browsers display it, but some editors, email programs, and upload forms don't. Keep your JPG and use AVIF where it's supported.
Why is conversion slower than for other formats?
AVIF encoding does far more work than JPG. Larger images and the Smallest speed take longer.
What if the AVIF is not smaller than my JPG?
It can happen with already well-compressed JPGs. The page tells you, and you can try a lower quality or keep the JPG.
Does AVIF keep transparency?
AVIF supports it, but a JPG has none to keep, so the result is a solid image.
Is my photo uploaded?
No. The encoder runs in your browser, and the photo never leaves your device.