Images
JPG to AVIF converter
Free JPG to AVIF converter: re-encode JPEG photos as AVIF for smaller web payloads. Needs browser AVIF encoder support—Chrome and Edge work best.
Overview
Hand off JPEGs into AVIF for modern delivery stacks. The JPEG is decoded and re-encoded, so you do not regain lost detail, but file size may drop. If the browser cannot encode AVIF, use PNG/JPEG/WebP converters here instead.
Conversion pair
Provide one .JPG asset and download .AVIF encoded entirely in-browser—pixels stay on your machine throughout the swap.
About .JPG
JPEG is the universally accepted photo codec; transparency is flattened away.
Other image pairs
Switch pairings—all use the same in-tab workflow below.
Frequently asked questions
Why convert JPG to AVIF instead of keeping JPEG for the web?
AVIF often beats JPEG on size at similar perceived quality when the encoder is available.
Why does JPG to AVIF conversion fail, and how can I fix it?
Try a Chromium-based browser with current AVIF encode support, or export WEBP/PNG instead.
Is JPG to AVIF private—are images uploaded?
No. Everything runs locally in the tab.