PixelCrush

AVIF → JXL

Convert your AVIF files to JXL for free, in your browser. No upload, no signup.

⌘V paste⌘O open⌘S download

Preset
75
px

Why convert AVIF to JXL?

AVIF (AV1 Image File Format) — Cutting-edge format based on the AV1 video codec. Up to 50% lighter than JPG at equivalent visual quality. The best quality/size ratio available today.

JXL (JPEG XL) — Official JPEG successor. Superior compression, performant lossless mode, and reversible conversion from existing JPG files.

Converting AVIF to JXL typically reduces file size while preserving a visual quality close to the original.

Quick comparison

AVIF

Source format

AV1 Image File Format

Released in 2019

Chrome 85+, Firefox 93+, Safari 16+

Best for: Core Web Vitals optimized sites

  • Record compression
  • HDR & wide gamut
  • Transparency
  • Slow encoding
  • Recent Safari support (16+)

JXL

Target format

JPEG XL

Released in 2021

Safari 17+, Firefox behind a flag

Best for: archival, pro photography

  • Ultra-efficient lossless
  • Reversible from JPG
  • Wide gamut
  • Partial browser support
  • Tooling still adopting

How it works

  1. 1

    Drop your AVIF

    Drag the file or paste it (⌘V).

  2. 2

    Adjust the settings

    Optional quality and max width.

  3. 3

    Download the JXL

    Local, instant conversion.

Frequently asked questions

Is AVIF → JXL conversion free?+

Yes, totally and without limit. PixelCrush requires no signup or payment — you can convert as many AVIF images to JXL as you wish.

Are my files uploaded to a server?+

No. All conversion happens in your browser via WebAssembly. No image leaves your device, ensuring privacy and speed.

Can I convert multiple AVIF files to JXL at once?+

Yes, batch processing is native. Drop multiple files or a folder, adjust the settings, then download everything as a .zip in one click.

Is JXL well supported by browsers?+

Safari 17+, Firefox behind a flag For a public site, AVIF and WebP are the safest choices.

Is there a file size limit?+

No imposed limit. The only constraint is your device's memory, but files of several MB pass without difficulty.

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