LocalConvert
Image Converter

Convert images to AVIF — free & private

Convert JPG, PNG, WEBP, HEIC and more to AVIF for smaller file sizes and superior compression. Runs entirely in your browser — no uploads.

No server uploads100% privateGPU acceleratedOpen source

How to convert to AVIF

  1. 1

    Choose your file

    Click or drag any JPG, JPEG, PNG file onto the uploader above.

  2. 2

    Pick AVIF format

    Select AVIF from the format dropdown in the converter.

  3. 3

    Save

    Hit the convert button, then save your AVIF file to your device instantly.

Supported input formats

.JPG.JPEG.PNG.WEBP.GIF.BMP.TIFF.HEIC

FAQ

Is the AVIF converter really free?

Yes, completely free. No hidden fees, no watermarks, no file size limits. LocalConvert is open source and free forever.

Are my files safe?

Absolutely. Your files never leave your browser. All conversion happens using WebAssembly running locally on your device — no uploads, ever.

What files can I convert to AVIF?

You can convert JPG, JPEG, PNG, WEBP, GIF, BMP, TIFF, HEIC files to AVIF.