Convert HDR to EXR
Convert HDR files to EXR 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)
Upload FilesPlatform Statistics
How to convert HDR to EXR
- Drop your .hdr files above, or click Upload Files. You can add many files at once.
- EXR 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 .exr files as soon as each one finishes.
What to know about HDR to EXR conversion
- EXR supports both lossy and lossless compression and typically produces smaller files than older formats at the same visual quality.
- EXR is best for high-dynamic-range renders and VFX compositing, and opens in Blender, Nuke, After Effects and Photoshop.
HDR vs EXR
| Feature | HDR (Radiance HDR) | EXR (OpenEXR) |
|---|---|---|
| Compression | lossless | lossy or lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | HDR environment maps for lighting 3D scenes | high-dynamic-range renders and VFX compositing |
| Opens in | Blender, 3D renderers and HDR viewers | Blender, Nuke, After Effects and Photoshop |
HDR (Radiance HDR): A high-dynamic-range RGBE image format commonly used for environment maps and lighting in 3D rendering.
EXR (OpenEXR): A high-dynamic-range image format developed by Industrial Light & Magic for use in computer imaging and visual effects.
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 HDR to EXR 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 HDR 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 EXR to HDR.
Convert HDR to other formats
- HDR to JPG
- HDR to PNG
- HDR to PDF
- HDR to WEBP
- HDR to GIF
- HDR to SVG
- HDR to AVIF
- HDR to ICO
- HDR to TIFF
- HDR to BMP
- HDR to JXL
- HDR to PSD
Convert other formats to EXR
- JPG to EXR
- PNG to EXR
- PDF to EXR
- WEBP to EXR
- HEIC to EXR
- GIF to EXR
- SVG to EXR
- AVIF to EXR
- ICO to EXR
- TIFF to EXR
- BMP to EXR
- JXL to EXR
See every HDR converter and EXR converter, or browse the full converter directory.