100% Free No Upload Bulk Conversion

Bulk HDR to DNG Converter — Free, No Upload

Convert multiple HDR files to DNG instantly — all in your browser. No file limits, no watermarks, and completely private.

HDR DNG  ·  ZIP
Bulk HDR → DNG Converter
Select files, convert, download ZIP — all locally
HDR Support is coming soon — we are working on it.

Drop HDR files here or click to browse

Supports batch selection — convert hundreds of files

HDR → DNG ZIP
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HDR to DNG?

convert.dynamic_reason.template_14 convert.dynamic_reason_closing.closing_9

Technical comparison: HDR vs DNG

PropertyHDRDNG
Full nameHigh Dynamic Range ImageDigital Negative
Compression Lossless Lossless RAW
Color depth32-bit float16-bit per channel
Transparency No No
Web support No No
Developed byRadiance / Greg Ward (1989)Adobe (2004)
Max colorsfloating point281T
MIME typeimage/vnd.radianceimage/x-adobe-dng
Category Raster image RAW format
Year gap 15 years apart in technical development
Best for High dynamic range photography Universal RAW — open standard by Adobe

How to use — 3 simple steps

1
Select your HDR files
Drag & drop or click to choose multiple HDR images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.
3
Download ZIP archive
All converted DNG files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HDR → DNG

convert.usecases_groups.group_7.0

convert.usecases_groups.group_7.1

convert.usecases_groups.group_7.2

convert.usecases_groups.group_7.3

💡 Pro tips

  • Use the ZIP download to get all converted files in a single click
  • All processing is private — files are never uploaded to any server

Frequently Asked Questions

No. This tool runs entirely in your browser using JavaScript and WebAssembly.
For lossy DNG, 85‑92% is optimal. For lossless, quality is always perfect.
Yes, especially RAW files are fully processed with demosaicing and white balance.
Absolutely. DNG is widely supported by most platforms.
Applicazione offline!