JXL
jpegxl.app
Static & Animated JXL to WebP

JXL to WebP Converter

Convert JPEG XL (.jxl) images and animations to WebP (.webp) for universal web browser compatibility with lossy and lossless options.

Drop .JXL files or a .ZIP archive here

Batch processing supported • Drag & drop files, paste from clipboard (Ctrl+V), or browse

Select Files or .ZIP

Conversion Settings

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Dedicated JPEG XL Format Converters

Choose a specialized tool for converting to or from JPEG XL (.jxl)

Fast Client-Side JXL to WebP Conversion

WebP is supported by over 97% of web browsers and CMS platforms. Converting your JPEG XL (.jxl) assets to WebP retains alpha transparency, small file sizes, and multi-frame animation while ensuring instant display across all devices.

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

FormatLosslessAlphaAnim
JPEG XLYes + JPGYesYes
AVIFYesYesYes
WebPYesYesYes
PNG / APNGOnlyYesAPNG
JPGNoNoNo
GIF256-col1-bitYes

Powered by libjxl (v0.7 WebAssembly) and client-side WebCodecs/WASM image pipelines.

Frequently Asked Questions

Does JXL to WebP support both static and animated JXL files?

Yes. Single-frame JXL images become static WebP files, and multi-frame animated JXL files become animated WebP files automatically.

Can I create a lossless WebP from a JXL file?

Yes! Check the "Lossless WebP" option in the settings panel to encode pixel-exact WebP output.