100% Free No Upload Bulk Conversion

Bulk HEIC to HDR Converter — Free, Unlimited

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

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✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HEIC to HDR?

People often ask why bother converting HEIC at all. The short answer: HDR handles High dynamic range photography noticeably better. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. Once you see the size or compatibility difference, going back rarely makes sense.

Transparent areas will be filled with white background

Technical comparison: HEIC vs HDR

Property	HEIC	HDR
Full name	High Efficiency Image Container	High Dynamic Range Image
Compression	Lossy	Lossless
Color depth	10-bit HDR	32-bit float
Transparency	Yes	No
Web support	No	No
Developed by	Apple / MPEG (2017)	Radiance / Greg Ward (1989)
Max colors	1.07B	floating point
MIME type	`image/heic`	`image/vnd.radiance`
Category	Raster image	Raster image
Year gap	28 years apart in technical development
Best for	iPhone photos — efficient storage	High dynamic range photography
Estimated size change	Typically 30%-80% larger

How to use — 3 simple steps

Select your HEIC files

Drag & drop or click to choose multiple HEIC images. No file size restrictions.

Start the conversion

Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.

Download ZIP archive

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

Popular use cases for HEIC → HDR

Game modders converting HEIC textures to HDR for engine compatibility

3D artists converting HEIC reference images to HDR for their pipeline

YouTubers converting HEIC thumbnails to HDR for upload requirements

Podcasters converting HEIC cover art to HDR for platform specifications

💡 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

Minor rendering differences can occur due to how each format's compression handles color, but the underlying data is processed accurately.

This tool is optimized for HEIC to HDR specifically. Mixed-format folders should be split by source format first.

Using HDR where it improves load speed can help page performance, which is a positive ranking signal.

Yes, once the ZIP has downloaded, the converted files are saved to your device and the browser tab can be closed safely.

Bulk HEIC to HDR Converter — Free, Unlimited

Why convert HEIC to HDR?

Technical comparison: HEIC vs HDR

How to use — 3 simple steps

Popular use cases for HEIC → HDR

💡 Pro tips

Frequently Asked Questions

Why does HDR sometimes look different from HEIC on screen?

Can I convert a folder of mixed HEIC and other formats at once?

Does converting HEIC to HDR affect SEO for images on my site?

Is my browser tab safe to close right after downloading the ZIP?

Convert other formats to HDR

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