Bulk HEIF to DNG Converter — Free, No Upload
Convert multiple HEIF files to DNG instantly — all in your browser. No file limits, no watermarks, and completely private.
Drop HEIF files here or click to browse
Supports batch selection — convert hundreds of files
Why convert HEIF to DNG?
Introduced in 2015 by MPEG Group, HEIF was great for its time. But DNG (created in 2004 by Adobe) offers lossless RAW compression and 16-bit per channel – a massive leap forward. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches.
Technical comparison: HEIF vs DNG
How to use — 3 simple steps
Popular use cases for HEIF → DNG
Web developers optimizing image assets – convert HEIF to DNG for faster page loads
Graphic designers preparing files for clients who don't have HEIF-compatible software
Photographers transitioning from RAW (HEIF) to a web-ready format (DNG)
Anyone building a website and wanting the best performance/quality balance (DNG)
💡 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