100% Free No Upload Bulk Conversion

Bulk HDR to BMP Converter — Free, Unlimited

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

HDR BMP  ·  ZIP
Bulk HDR → BMP Converter
Select files, convert, download ZIP — all locally
HDR Support is coming soon — we are working on it.

Drop HDR files here or click to browse

Supports batch selection — convert hundreds of files

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

Why convert HDR to BMP?

HDR and BMP solve different problems. If yours matches Uncompressed images on Windows, the conversion pays off immediately. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. It's a small technical decision that quietly saves time down the line.

Technical comparison: HDR vs BMP

PropertyHDRBMP
Full nameHigh Dynamic Range ImageBitmap Image File
Compression Lossless Uncompressed
Color depth32-bit float24-bit
Transparency No No
Web support No No
Developed byRadiance / Greg Ward (1989)Microsoft (1988)
Max colorsfloating point16.7M
MIME typeimage/vnd.radianceimage/bmp
Category Raster image Raster image
Year gap 1 years apart in technical development
Best for High dynamic range photography Uncompressed images on Windows

How to use — 3 simple steps

1
Select your HDR files
Drag & drop or click to choose multiple HDR 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 BMP files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HDR → BMP

Make your HDR images viewable on any device – convert to BMP

Stop dealing with 'unsupported format' errors – use BMP instead of HDR

Batch rename and convert your HDR collection to BMP for a unified library

Improve your website's Google PageSpeed score by serving BMP images

💡 Pro tips

  • 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

BMP uses uncompressed 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!