Convert JXL to HDR
Convert JXL files to HDR locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
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How to convert JXL to HDR
- Drop your .jxl files above, or click Upload Files. You can add many files at once.
- HDR is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .hdr files as soon as each one finishes.
What to know about JXL to HDR conversion
- HDR has no transparency, so transparent areas of the JXL are filled with white.
- HDR cannot store animation, so only the first frame of an animated JXL is converted.
- HDR is best for HDR environment maps for lighting 3D scenes, and opens in Blender, 3D renderers and HDR viewers.
JXL vs HDR
| Feature | JXL (JPEG XL) | HDR (Radiance HDR) |
|---|---|---|
| Compression | lossy or lossless | lossless |
| Transparency | Yes | No |
| Animation | Yes | No |
| Best for | next-generation photos, including lossless recompression of JPEGs | HDR environment maps for lighting 3D scenes |
| Opens in | Safari 17+, recent image editors and viewers | Blender, 3D renderers and HDR viewers |
JXL (JPEG XL): A next-generation image compression format designed to replace legacy JPEG with smaller file sizes and better quality.
HDR (Radiance HDR): A high-dynamic-range RGBE image format commonly used for environment maps and lighting in 3D rendering.
Conversion options
- Resize by width, height or both (aspect ratio is preserved)
- Filters: grayscale, sepia, blur and sharpen
- Custom output file name
Frequently asked questions
Is it safe to convert JXL to HDR here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several JXL files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert HDR to JXL.
Convert JXL to other formats
- JXL to JPG
- JXL to PNG
- JXL to PDF
- JXL to WEBP
- JXL to GIF
- JXL to SVG
- JXL to AVIF
- JXL to ICO
- JXL to TIFF
- JXL to BMP
- JXL to PSD
- JXL to TGA
Convert other formats to HDR
- JPG to HDR
- PNG to HDR
- PDF to HDR
- WEBP to HDR
- HEIC to HDR
- GIF to HDR
- SVG to HDR
- AVIF to HDR
- ICO to HDR
- TIFF to HDR
- BMP to HDR
- PSD to HDR
See every JXL converter and HDR converter, or browse the full converter directory.