How to Convert APNG to HDR — Quick & Free
Fast, instant APNG to HDR conversion. No signup required. Just drop your .apng file and get .hdr in seconds.
Batch Settings
About APNG to HDR Conversion
Short answer: yes, you can convert APNG to HDR online for free, and quality is well preserved with the right settings. Just upload your .apng file to CocoConvert, pick HDR as the output, and click Convert. The whole process takes seconds.
Now for the details. APNG 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 APNG file is decoded and re-encoded as HDR. Converting APNG 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 APNG to HDR
- 1
1. Upload APNG
Drop your .apng 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 APNG to HDR
Your APNG file is decoded and re-encoded as HDR.
Your APNG 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
APNG
.apng file
| Extension | .apng |
| MIME Type | image/apng |
| Category | Image |
HDR
.hdr file
| Extension | .hdr |
| MIME Type | image/vnd.radiance |
| Category | Image |
Should You Convert APNG to HDR?
When to Convert
- ✓When you need a HDR file
Frequently Asked Questions
Is APNG to HDR conversion free?
Yes. CocoConvert offers free APNG 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 APNG 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 APNG 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 APNG to HDR lose quality?
Converting APNG to HDR maintains high quality with CocoConvert's optimised encoder settings.
Can I convert HDR back to APNG?
Yes, CocoConvert supports HDR to APNG conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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