100% Free
No Upload
Bulk Conversion
RAW Support
Bulk DNG to HDR Converter — Free, No Upload
Convert multiple DNG files to HDR instantly — all in your browser. No file limits, no watermarks, and completely private.
DNG
HDR
·
ZIP
Bulk DNG → HDR Converter
Select files, convert, download ZIP — all locally
RAW conversion may take longer — files are processed via WebAssembly in your browser
Drop DNG files here or click to browse
Supports batch selection — convert hundreds of files
DNG
→ HDR
ZIP
0 files
Converting
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✓ Conversion completed!
All files converted successfully. Click Download ZIP to save them.
Why convert DNG to HDR?
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RAW conversion may take longer — files are processed via WebAssembly in your browser
Technical comparison: DNG vs HDR
How to use — 3 simple steps
1
Select your DNG files
Drag & drop or click to choose multiple DNG 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 HDR files are bundled into a single ZIP. One click, everything saved.
Popular use cases for DNG → HDR
Uploading DNG photos to social media after converting to HDR
Saving hard drive space by converting a batch of DNG images to HDR
Emailing high-quality images without attachment limits (use HDR)
Creating a backup copy of your DNG library in the more compatible HDR format
💡 Pro tips
- RAW files process directly in your browser — no software installation needed
- Bulk convert your entire RAW session at once — drop all files together
- 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
Typically 60‑90% smaller for lossy HDR, or 20‑40% for lossless HDR compared to uncompressed DNG.
HDR is supported by all modern browsers (Chrome, Firefox, Safari, Edge) if web_support is true. Check caniuse.com otherwise.
Only the first frame of animated GIF will be converted to HDR. For animation, use GIF or WebP.
HDR supports transparency? If yes, preserved. If not, transparent areas become white/black. Use PNG for transparency.