How to convert EXR to HDR
- Add your .EXR file - drop it in the box above or click to browse.
- Convert it to .HDR in a few seconds.
- Download your new .HDR file.
What to expect
- Radiance HDR uses 8-bit RGBE encoding - slightly less precise than EXR's 16-bit half-float, though the difference is rarely visible in lighting or IBL use.
- The
.hdrformat has no layer support; only the main RGB channels are exported - extra render passes such as depth or normals are lost. - The
.hdrformat does not store an alpha channel; any transparency in the source.exris dropped on export.
Frequently asked questions
Does converting EXR to HDR lose quality?
Some precision is lost because Radiance RGBE stores 8 bits per channel plus a shared exponent, versus EXR's 16-bit half-float. For IBL lighting the difference is rarely visible, but keep the
.exr as your archival copy.Can I convert a multi-layer EXR to HDR?
Only the main RGB layer is exported; extra passes such as depth, normals, or cryptomatte are not supported by the
.hdr format and will be dropped.Why would I use HDR instead of keeping EXR?
When the receiving application requires it - some older 3D engines and real-time renderers only load Radiance
.hdr environment maps.Can I convert the HDR back to EXR?
You can, but the precision reduction is permanent; converting back gives an EXR with RGBE-quality data, not the original float precision.
