100% Free No Upload Bulk Conversion

Bulk HEIC to HDR Converter — Free, No Upload

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

HEIC HDR  ·  ZIP
Bulk HEIC → HDR Converter
Select files, convert, download ZIP — all locally

Drop HEIC files here or click to browse

Supports batch selection — convert hundreds of files

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

Why convert HEIC to HDR?

Have you ever tried using a HEIC image on a platform that doesn't support it? That's frustrating. By converting to HDR, you get a universally compatible lossless file that works everywhere. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches.

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Technical comparison: HEIC vs HDR

PropertyHEICHDR
Full nameHigh Efficiency Image ContainerHigh Dynamic Range Image
Compression Lossy Lossless
Color depth10-bit HDR32-bit float
Transparency Yes No
Web support No No
Developed byApple / MPEG (2017)Radiance / Greg Ward (1989)
Best for iPhone photos — efficient storage High dynamic range photography

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 HDR files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HEIC → HDR

Web developers optimizing image assets – convert HEIC to HDR for faster page loads

Graphic designers preparing files for clients who don't have HEIC-compatible software

Photographers transitioning from RAW (HEIC) to a web-ready format (HDR)

Anyone building a website and wanting the best performance/quality balance (HDR)

💡 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

HDR uses lossless 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.
Application offline!