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HDR Merge Master

Input—per 1M tokens
Output—per 1M tokens
Context—tokens
WeightsClosed

About

HDR Merge Master is ranked #6 of 20 in HDR software on Inferse. It runs on Linux, macOS, Windows.

Compared on HDR software

HDR merge mode
bracketedgithub.com
Batch processing
Yesgithub.com
RAW file support
Yesgithub.com
HDR output formats
32-bit OpenEXR, Radiance HDRgithub.com
Supported platforms
Windows, macOS, Linuxgithub.com

Facts

What it does
HDR Merge Master uses Blender’s compositor to merge exposure brackets in bulk into 32-bit EXR files.github.com · 3 Oct 2026
HDR output
The output format can be 32-bit OpenEXR or Radiance HDR.github.com · 3 Oct 2026
Batch processing
Users can add multiple input folders and optionally process subfolders recursively.github.com · 3 Oct 2026
Alignment
The app offers no alignment, Hugin pre-alignment, or MTB alignment, depending on the Blender version and selected mode.github.com · 3 Oct 2026
Preview files
The tool creates tonemapped JPG previews alongside the merged HDR files.github.com · 3 Oct 2026
RAW processing
Processing camera RAW files requires RawTherapee; existing adjacent PP3 profiles are used automatically.github.com · 3 Oct 2026
Integrations
The project documents optional use of Blender, RawTherapee, Hugin, Luminance HDR, and PTGui workflows.github.com · 3 Oct 2026
PTGui workflow
An included script can replace JPG paths with EXR paths in a PTGui PTS project.github.com · 3 Oct 2026
Automation
A headless command-line mode supports batch JSON input, folder processing, alignment options, thread settings, and cleanup.github.com · 3 Oct 2026
Blender versions
Blender 4.5 LTS or 5.1 LTS are actively tested; older versions use a legacy script with reduced features.github.com · 3 Oct 2026
Notable limit
The tool does not perform ghost removal, and the README recommends using a steady tripod.github.com · 3 Oct 2026
Who it is for
The README describes the intended workflow as creating HDRIs for stitching, then swapping JPG previews for EXR files before final export.github.com · 3 Oct 2026
License
The repository identifies its license as GPL-3.0.github.com · 3 Oct 2026
Release downloads
The project distributes downloadable builds through GitHub Releases.github.com · 3 Oct 2026
Maker
The repository owner is Greg Zaal, whose GitHub profile lists South Africa.github.com · 3 Oct 2026

Best HDR Merge Master alternatives

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6.7 Photomatix Pro $19/mo first paid tier Free trial 5.9 easyHDR See plans price on the maker's page Free trial 5.9 PhotomatixCL $19/mo first paid tier Free trial 5.9 SNS-HDR €30/mo first paid tier Free plan 5.9 Tembrica Video Background Remover See plans price on the maker's page 5.8 HDRMerge Free free plan, no paid price published Free plan

Where it ranks on Inferse

Sources