100% Free
No Upload
Bulk Conversion
Bulk JP2 to HDR Converter — Free, No Upload
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.
Drop JP2 files here or click to browse
Supports batch selection — convert hundreds of files
JP2
→ HDR
ZIP
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✓ 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. convert.dynamic_reason_closing.closing_12
Transparent areas will be filled with white background
Technical comparison: JP2 vs HDR
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
convert.usecases_groups.group_14.0
convert.usecases_groups.group_14.1
convert.usecases_groups.group_14.2
convert.usecases_groups.group_14.3
💡 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 is supported by all modern browsers (Chrome, Firefox, Safari, Edge) if web_support is true. Check caniuse.com otherwise.
Only the first frame of animated GIF will be converted to HDR. For animation, use GIF or WebP.
HDR supports transparency? If yes, preserved. If not, transparent areas become white/black. Use PNG for transparency.