Convert JPEG XL to AVIF

Convert JPEG XL files to AVIF in your browser. AVIF files are typically larger than JPEG XL. Note: converting from lossless JPEG XL to lossy AVIF discards some detail in exchange for smaller files. Free, no upload, no signup.

Output format

AVIF

82%

01 — Overview

Why convert JPEG XL to AVIF

AVIF is a more practical choice than JPEG XL for most modern workflows. Hero images and other content where every byte matters

02 — Comparison

JPEG XL vs AVIF

AttributeJPEG XLAVIF
CompressionLossy or losslessLossy
TransparencyYesYes
AnimationYesYes
Typical file sizeSmallSmall
Browser supportLimited — Safari 17+ supports it; Chrome and Firefox are still behind flags or pending. Great for archival and apps that control their own decoder.Supported in Chrome, Firefox, Safari 16+, and Edge. Pre-2022 devices may not decode it.

03 — How to

Three steps

  1. 01

    Drop your JPEG XL files

    Drag one or more JPEG XL files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.

  2. 02

    Convert in your browser

    convert.now decodes each JPEG XL and re-encodes it as AVIF via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.

  3. 03

    Download the result

    Download a single AVIF file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

04 — Pillars

Why convert.now

  • Private

    Files stay in your browser. No upload step. Nothing for anyone to see.

  • Fast

    No queue, no upload wait. Conversion starts the moment you drop a file.

  • Free

    No ads. No file-count limit. No sign-up wall. Just the converter.

05 — FAQ

Frequently asked

No. The conversion from JPEG XL to AVIF runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

06 — More

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