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Convert JPG to AVIF

Free, instant and private — your JPG files are converted right in your browser and never uploaded to a server.

How to convert JPG to AVIF

  1. Step 01

    Add your JPG files

    Drop them into the box above or click to browse. You can add several files at once.

  2. Step 02

    Conversion starts instantly

    It runs in your browser using its built-in image engine — no upload, no queue, no waiting.

  3. Step 03

    Download your AVIF files

    Save each file individually or grab them all at once. Done.

Why convert JPG to AVIF?

AVIF is the most efficient mainstream image format there is — typically far smaller than JPG at the same visual quality. Converting your JPGs to AVIF is one of the biggest page-speed wins available for a website. The encoding runs in your browser; nothing is uploaded.

JPG vs AVIF at a glance

JPG is the universal photo format — opens in every app, device and website made since the early 90s. AVIF is the newest mainstream image format — outstanding compression, but support outside browsers is still patchy.

PropertyJPGAVIF
Extension.jpg, .jpeg.avif
Full nameJPEG (Joint Photographic Experts Group)AV1 Image File Format
First released19922019
Developed byJoint Photographic Experts GroupAlliance for Open Media
CompressionLossyLossy
TransparencyNoYes
AnimationNoYes
Best forphotos and realistic imagesnext-generation web images with maximum compression

JPG to AVIF — frequently asked questions

Is this JPG to AVIF converter really free?

Yes — completely free, with no sign-up, no watermarks and no daily limits.

Are my JPG files uploaded to a server?

No. The conversion happens entirely on your device using your browser's built-in image engine. Your JPG files never leave your computer or phone — which is also why the conversion is nearly instant.

Will I lose quality converting to AVIF?

AVIF uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.

Why is AVIF smaller than JPG?

AVIF uses the modern AV1 codec, which compresses far more efficiently than JPG's decades-old method — often at half the size for the same visual quality.

Do all browsers support AVIF?

Every current browser displays AVIF. A few older ones don't, so keep a JPG or WebP fallback if you need to support them.

Related conversions

Need the reverse? Convert AVIF to JPGExplore the AVIF converter