JPG to AVIF converter

Convert JPG photos to AVIF, a format even smaller than WebP. Encoded in your browser, free, no upload.

    Drop JPG files here or choose files.

    • Up to 30MB per file, 10 images at a time, 40 megapixels max
    • AVIF encoding is slow. A 10 megapixel photo takes about 10 to 30 seconds, longer on a phone

    Normal is hard to tell from the original. Use High for images with a lot of text, Light when file size matters most.

    Files never leave this device. Privacy policy

    Result

    Upload JPG files and click Convert. The smaller AVIF files appear here.

    What to do next

    JPG to WebP

    Worried about where AVIF opens? WebP is more widely supported.

    Compress image

    Keep the JPG and shrink it to a target like 100KB or 500KB.

    PNG to AVIF

    Transparent PNGs can go to AVIF too.

    How it works

    Pick your JPG files, choose a quality and click Convert. Several files are converted one after another, and you can save them one by one or as a ZIP. The result card compares the original and AVIF sizes.

    Photo orientation (EXIF rotation) is applied when saving. Location and camera metadata are not written to the result.

    Things to know

    Every current browser opens AVIF, but older Windows Photos and some forum and store admin pages still do not. Check that the destination accepts AVIF, and keep the original if you are not sure.

    Encoding happens on your device, so bigger photos take longer. Resize photos over 40 megapixels before converting.

    Frequently asked questions

    How much smaller does AVIF make a JPG?

    It depends on the photo, but at Normal quality the result is often less than half the size of the original JPG. A JPG that is already heavily compressed shrinks less and, rarely, can get bigger. In that case choose Light.

    The AVIF file will not open.

    Current Chrome, Edge, Firefox, Safari (iOS 16 and later) and the current Windows Photos app open AVIF. Older Windows Photos and Paint, some forum and store admin pages, and older image editors may not open it or may refuse the upload. For those, JPG or WebP is the safe choice.

    Why does it take so long?

    AVIF compresses very well, but encoding takes a lot of computation. This tool does not send photos to a server. It encodes on your device, so one photo can take anywhere from a few seconds to over a minute depending on the hardware. For many or large photos a desktop computer is faster, and a phone may stop if the screen turns off.

    Do my photos get uploaded to a server?

    No. The first run downloads the AVIF encoder module (about 3.5MB), and after that decoding and encoding happen inside this browser. Results disappear when you close the page, so use the save button to download them.

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