Convert JXL to AVIF

Tested on Windows 11, 24 October 2026

Convert JXL images to AVIF on your Windows PC. Filoshi converts with ImageMagick, keeps transparency and lets you resize, crop or remove location and camera data first. Convert one file or hundreds at once; nothing is uploaded.

Get Filoshi · $29One-time purchase, for Windows 10 and 11.

JXL to AVIF with the Filoshi app

This conversion uses ImageMagick, which is built into the app. It runs on your Windows PC, offline, and the file never leaves it.

  1. Drop your JXL files on the Filoshi window, or paste them with Ctrl+V.
  2. Pick AVIF for one file or for all of them.
  3. Press Convert all. Each AVIF file appears next to its original, which is never changed.
Get Filoshi · $29

For Windows 10 and 11 · no subscription

Source format

What is JXL?

JPEG XL (.jxl). JPEG XL is an image format standardised in 2022 (ISO/IEC 18181). It does lossy and lossless compression, supports transparency and HDR, and can repack an existing JPEG losslessly into a smaller file. Software support is still growing.

Common use: Photo archives and modern image workflows

Output format

What is AVIF?

AV1 Image File Format (.avif). AVIF stores images with the AV1 video codec. It usually compresses better than JPEG and WebP and supports HDR, wide colour and transparency, but encoding is slow and older software cannot open it.

Common use: Modern website images, HDR photos

Questions about JXL to AVIF

Is converting JXL to AVIF free?
JXL to AVIF needs the Filoshi desktop app for Windows, a one-time purchase of $29. There is no subscription and no per-file fee.
Does converting JXL to AVIF lose quality?
It depends on how the AVIF file is saved: AVIF can be lossy or lossless. Filoshi uses a high-quality setting by default.
Is my JXL file uploaded anywhere?
No. Filoshi converts on your PC with its built-in engines (FFmpeg, ImageMagick, Pandoc, PDFium, pdfcpu and 7-Zip). Your JXL file never leaves your computer.
Has JXL to AVIF been tested?
Yes. JXL to AVIF is one of the 1,841 conversions that passed Filoshi's automated test matrix on Windows 11.
Can I convert many JXL files at once?
Yes, in the desktop app. Drop as many JXL files as you like on the window, pick AVIF once for all of them, and each file shows its own progress. The new files appear next to the originals, which are never changed.

Related conversions

Other JXL conversions

JXL to JPGJXL to JPEGJXL to PNGJXL to WEBPJXL to GIFJXL to BMPJXL to TIFFJXL to TIF

Convert to AVIF

PNG to AVIFJPG to AVIFJPEG to AVIFWEBP to AVIFGIF to AVIFBMP to AVIFTIFF to AVIFTIF to AVIF