100% Free No Upload Bulk Conversion

Bulk JP2 to HDR Converter — Free, Unlimited

Convert multiple JP2 files to HDR instantly — all in your browser. No file limits, no watermarks, and completely private.

JP2 HDR  ·  ZIP
Bulk JP2 → HDR Converter
Select files, convert, download ZIP — all locally
JP2 Support is coming soon — we are working on it.
Browsers cannot reliably generate a real HDR file. The downloaded file may not actually be a valid HDR.

Drop JP2 files here or click to browse

Supports batch selection — convert hundreds of files

JP2 → HDR ZIP
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert JP2 to HDR?

The main issue with JP2 is lack of browser support. Converting to HDR fixes this by providing perfect pixel preservation with smaller files. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. This kind of format decision tends to matter more as a project scales up.

Transparent areas will be filled with white background

Technical comparison: JP2 vs HDR

PropertyJP2HDR
Full nameJPEG 2000High Dynamic Range Image
Compression Lossy / Lossless Lossless
Color depth48-bit32-bit float
Transparency Yes No
Web support No No
Developed byJPEG Committee (2000)Radiance / Greg Ward (1989)
Max colors281Tfloating point
MIME typeimage/jp2image/vnd.radiance
Category Raster image Raster image
Year gap 11 years apart in technical development
Best for High‑quality professional images High dynamic range photography

How to use — 3 simple steps

1
Select your JP2 files
Drag & drop or click to choose multiple JP2 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 JP2 → HDR

Startup founders converting JP2 pitch deck images to HDR for smaller files

Open-source maintainers converting JP2 documentation screenshots to HDR

Conference organizers converting JP2 speaker photos to HDR for the event site

Genealogists converting JP2 family archive scans to HDR for preservation

💡 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

Typically 60-90% smaller for lossy HDR, or 20-40% for lossless HDR compared to uncompressed JP2.
HDR has limited native browser support, so it's best used for storage/processing rather than direct web display. Check caniuse.com for the latest status.
JP2 is not an animation format, so this conversion always processes static images — no animation handling needed.
No — HDR does not support transparency, so transparent areas are filled with a solid white background.

Related conversions

JPEG → JPE
JPEG → PNG
JPEG → WEBP
JPEG → AVIF
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