Combine two or more RAW exposure files into one RAW image with an extended dynamic range using HDRMerge.
HDRMerge
Merge RAW exposures into HDR images with HDRMerge and consult its user manual.
About HDRMerge
HDRMerge creates raw images with extended dynamic range from multiple exposure-bracketed raw files or single raw files with multiple bracketed frames. The result is built from the less noisy pixels to keep shadow detail. The site offers stable and development downloads, a user manual, command-line help, and GitHub bug reporting.
Pricing is not clearly stated.
Key features
- Import any raw format supported by LibRaw
- Output DNG 1.4 image with floating point data
- Handle single-file Fuji EXR and some Pentax frames
- GUI to remove ghosts from resulting image
- Batch mode to merge several image sets at once
- Run via command line with hdrmerge --help
Watch out for
- Some stable and development downloads listed as not yet available
- Development builds are for testing and bug reporting, not everyday use
HDRMerge at a glance
- Website
- jcelaya.github.io/hdrmerge
- Category
- Design & Creative › Photography
- Type
- App
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Windows
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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