HDR to VIFF — Format Comparison & Online Converter
Fast, instant HDR to VIFF conversion. No signup required. Just drop your .hdr file and get .viff in seconds.
Batch Settings
About HDR to VIFF Conversion
HDR (introduced 1985) and VIFF are both image formats, but they differ in important ways. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. VIFF is a widely used file format.
When you convert HDR to VIFF, the goal is to convert between formats quickly. Converting HDR to VIFF maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your HDR file is decoded and re-encoded as VIFF. The conversion involves 4 steps: (1) your hdr file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in viff format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a VIFF file. For the opposite direction, CocoConvert also supports VIFF to HDR conversion.
How to Convert HDR to VIFF
- 1
Upload .hdr file
Select your HDR file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .viff
Set VIFF as the output format. The converter uses optimal settings based on the HDR→VIFF conversion profile.
- 3
Convert
The server-side engine decodes your HDR file and re-encodes it as VIFF. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .viff file. Multiple output files can be downloaded together.
What Happens When You Convert HDR to VIFF
Your HDR file is decoded and re-encoded as VIFF.
Your HDR file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in VIFF format
The converted file is ready for download
Format Comparison
HDR
.hdr file
| Extension | .hdr |
| MIME Type | image/vnd.radiance |
| Category | Image |
VIFF
.viff file
| Extension | .viff |
| MIME Type | image/x-viff |
| Category | Image |
Should You Convert HDR to VIFF?
When to Convert
- ✓When you need a VIFF file
Frequently Asked Questions
What is the difference between HDR and VIFF?
HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. VIFF is a widely used file format.
Does HDR to VIFF conversion affect quality?
Converting HDR to VIFF maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, HDR or VIFF?
HDR uses lossless compression. VIFF is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does HDR to VIFF conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is HDR or VIFF better for long-term storage?
HDR is better for archival since it's lossless.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.