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JPG to AVIF Converter

Compress JPG and PNG images into AVIF, a modern format that keeps files very small.

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JPG · PNG · WebPPNG to JPGJPG to PNGWebP to JPGWebP to PNGJPG to WebPPNG to WebPJFIF to JPGBMP to JPG
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or drop files here

Accepts JPG, PNG

Encrypted upload. Files are deleted automatically after 1 hour.

About JPG to AVIF

JPG to AVIF is for squeezing images as small as they'll go without an obvious drop in quality. AVIF is a modern format built on AV1 video compression, and a photo often ends up about half the size of the JPG at a similar look. Chrome, Firefox, Safari and Edge all display it, which makes it a strong choice for web pages and online stores. For WebP, the other modern web format, see the converters in Image Converter.

You can upload JPG or PNG, and transparent PNGs keep their transparency. Quality starts at 60, a sensible level for AVIF, whose quality numbers don't line up with JPG's, so 60 here doesn't mean a rough-looking image. Encoding effort, under More options, trades time for size: lower values take longer and save a little more.

How to use JPG to AVIF

  1. 1
    Upload a JPG or PNG

    Click Choose file or drop the image on the page.

  2. 2
    Set Quality

    Keep 60 or move the slider, and change Encoding effort under More options to trade speed for size.

  3. 3
    Click JPG to AVIF

    The image is encoded as AVIF on our server in an isolated process.

  4. 4
    Download the AVIF

    Compare it with the original and use it on your site.

Why use Cubfile for this

  • Very small files

    AVIF's compression can roughly halve a JPG's size while keeping a similar look.

  • PNG transparency kept

    Upload a transparent PNG and the AVIF keeps its alpha channel.

  • Tunable encoding

    Quality and Encoding effort let you decide how hard the encoder works.

  • Photo info carried over

    Camera and date details from the JPG are written into the AVIF.

FAQ

JPG to AVIF: questions and answers

How much smaller is an image after JPG to AVIF?
Often around half the size at a similar look, but it depends on the picture and on the Quality setting, so compare before and after.
Which browsers show images made with JPG to AVIF?
Current versions of Chrome, Firefox, Safari and Edge. Older browsers and many desktop apps can't open AVIF, so keep a JPG for them. An AVIF can also be turned back into a JPG with AVIF to JPG.
What does Encoding effort do?
It sets how long the encoder spends looking for savings. Lower numbers are slower but make the file a little smaller; the default of 6 is a good middle ground.
Is there a daily limit on JPG to AVIF conversions?
Free accounts can run 2 conversions a day with files up to 50 MB, and visitors get 2 in total. VIP has no daily limit and accepts files up to 1 GB.
What happens to my uploads?
Everything is deleted automatically an hour after conversion. The upload is encrypted, the job runs in an isolated process, and your images are never shared, sold or used for AI training.
Share JPG to AVIF with a friendIt runs in any browser, and they can try it without signing up.

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