How to Convert JNX to HDR — Quick & Free
Fast, instant JNX to HDR conversion. No signup required. Just drop your .jnx file and get .hdr in seconds.
Batch Settings
About JNX to HDR Conversion
Short answer: yes, you can convert JNX to HDR online for free, and quality is well preserved with the right settings. Just upload your .jnx file to CocoConvert, pick HDR as the output, and click Convert. The whole process takes seconds.
Now for the details. JNX is a widely used file format. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. Converting between these two formats lets you convert between formats quickly.
Your JNX file is decoded and re-encoded as HDR. Converting JNX to HDR maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert JNX to HDR
- 1
1. Upload JNX
Drop your .jnx file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select HDR
Choose .hdr from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .hdr file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert JNX to HDR
Your JNX file is decoded and re-encoded as HDR.
Your JNX file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in HDR format
The converted file is ready for download
Format Comparison
JNX
.jnx file
| Extension | .jnx |
| MIME Type | image/x-jnx |
| Category | Image |
HDR
.hdr file
| Extension | .hdr |
| MIME Type | image/vnd.radiance |
| Category | Image |
Should You Convert JNX to HDR?
When to Convert
- ✓When you need a HDR file
Frequently Asked Questions
Is JNX to HDR conversion free?
Yes. CocoConvert offers free JNX to HDR conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is JNX to HDR conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded JNX file and the converted HDR file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting JNX to HDR lose quality?
Converting JNX to HDR maintains high quality with CocoConvert's optimised encoder settings.
Can I convert HDR back to JNX?
Yes, CocoConvert supports HDR to JNX conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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