Drop a file here or click to choose
Your file stays on your device. Processing happens locally in your browser.
What is JPG to AVIF?
JPG to AVIF re-encodes JPEG photos as AVIF, the newest widely supported web image format, which is often around half the size of a JPG at similar quality. Today's browsers can display AVIF but none we tested can write it, so a self-hosted encoder runs on your device — expect a few seconds per photo.
Key features
- AVIF quality control (60–70 is a good start)
- Self-hosted AVIF encoder, loaded only when needed
- Optional resize to speed up encoding
- Before/after format, dimensions, file size and % change
- Output decoded again and checked before download
- Runs in your browser — nothing is uploaded
Popular uses
- Smallest hero and product images for fast pages
- Modern image sets alongside WebP and JPG
- Cut image bandwidth on a busy site
Supported formats
Input: JPG, JPEG, JFIF. Output: AVIF.
Troubleshooting
- Encoding is slow AVIF is much heavier to encode than JPG and runs on your own processor; Firefox is slower than Chrome, Edge and Safari. Resizing first helps a lot.
- Some visitors can't see AVIF Very old browsers lack AVIF. Serve a JPG or WebP fallback with <picture>.
- The page says the image is too large for this device Very large pictures have to fit in your browser's memory. Close other tabs or use a computer.
- Need a different format? Open the Image Converter — it reads 10 formats and writes 7.
Also known as: JPEG to AVIF, Convert to AVIF, AVIF Encoder Online.
How it works
- Choose a JPG or JPEG photo.
- AVIF is preselected; set the quality (60–70 is a good start for AVIF).
- Convert and download. Encoding takes a few seconds for large photos.
FAQ
Which browsers show AVIF?
Current Chrome, Edge, Firefox and Safari 16.4+ display AVIF. Keep a JPG fallback for very old browsers.
Why does AVIF take longer?
AVIF encoding is heavier than JPG. If your browser can't encode AVIF natively, a self-hosted encoder runs on your device.
Is my image uploaded?
No. It is decoded, converted and checked in your browser; the file never leaves your device.