AVIF to JXL Converter
Convert AVIF images and animated AVIF sequences to JPEG XL (.jxl) locally in your browser with batch processing and ZIP support.
Drop .AVIF files or a .ZIP archive here
Batch processing supported • Drag & drop files, paste from clipboard (Ctrl+V), or browse
Conversion Settings
75–85 matches visually lossless JPEG
1 = Fast (Lightning) • 7 = Default (Squirrel)
Dedicated JPEG XL Format Converters
Choose a specialized tool for converting to or from JPEG XL (.jxl)
Convert Images to JXL
Convert JXL to Other Formats
AVIF vs JPEG XL Conversion
Both AVIF and JPEG XL are modern royalty-free image codecs, but JPEG XL excels in fast decoding speed, progressive loading, high-fidelity texture preservation without smoothing, and unrestricted image dimensions.
100% Local Privacy
Powered by WebAssembly (`libjxl`). Your images are processed inside your browser tab and never uploaded to any cloud server.
Reversible JPEG Recompression
Losslessly transcode existing `.jpg` files into `.jxl` (~20% smaller) and reconstruct the exact bit-for-bit `.jpg` whenever needed.
Batch & ZIP Archive Workflow
Drop dozens of images or a `.zip` archive at once. Download converted files individually or bundled in a single `.zip`.
Animation & Alpha Support
Full support for multi-frame animations and alpha transparency across JXL, APNG, GIF, WebP, and AVIF.
Format Capabilities Matrix
| Format | Lossless | Alpha | Anim |
|---|---|---|---|
| JPEG XL | Yes + JPG | Yes | Yes |
| AVIF | Yes | Yes | Yes |
| WebP | Yes | Yes | Yes |
| PNG / APNG | Only | Yes | APNG |
| JPG | No | No | No |
| GIF | 256-col | 1-bit | Yes |
Powered by libjxl (v0.7 WebAssembly) and client-side WebCodecs/WASM image pipelines.
Frequently Asked Questions
Can I convert animated AVIF (AVIS) to JXL?
Yes. Animated AVIF tracks are decoded frame-by-frame and re-encoded into an animated JPEG XL file.
Does AVIF to JXL run completely offline in my browser?
Yes, decoding and libjxl encoding happen locally in WebAssembly with zero server uploads.