100% Free
No Upload
Bulk Conversion
Bulk HEIC to DNG Converter — Free, No Upload
Convert multiple HEIC files to DNG instantly — all in your browser. No file limits, no watermarks, and completely private.
HEIC
DNG
·
ZIP
Bulk HEIC → DNG Converter
Select files, convert, download ZIP — all locally
Drop HEIC files here or click to browse
Supports batch selection — convert hundreds of files
HEIC
→ DNG
ZIP
0 files
Converting
0 / 0
✓ Conversion completed!
All files converted successfully. Click Download ZIP to save them.
Why convert HEIC to DNG?
The main issue with HEIC is lack of browser support. Converting to DNG fixes this by providing broad compatibility across devices and software. convert.contextual.raster_to_raw
Transparent areas will be filled with white background
Technical comparison: HEIC vs DNG
How to use — 3 simple steps
1
Select your HEIC files
Drag & drop or click to choose multiple HEIC 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 HEIC → DNG
When you need transparency support – convert from HEIC to DNG
To reduce image file size by up to 80% without visible quality loss (HEIC → DNG)
For archiving old HEIC images in a future‑proof, well‑supported format (DNG)
Bulk processing an entire folder of HEIC screenshots to DNG for documentation
💡 Pro tips
- If your image has transparency, consider converting to PNG instead to preserve it
- 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
DNG uses lossless RAW compression. If lossy, at 85‑92% quality the loss is imperceptible. If lossless, every pixel is preserved.
No artificial limit. Browser memory is the only constraint. Files up to 500 MB work well.
Yes. The bulk converter processes all selected files sequentially. Hundreds of files possible.
Yes. Everything happens locally in your browser via WebAssembly. Files never uploaded.