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HDRU Converter
Convert HDRU files with automation. reaConverter supports Watch Folders, right-click conversion, and the command line.
How to Convert .hdru Files in Bulk
1. Install reaConverter
2. Select HDRU Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless HDRU file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Extra Tools
Do more with your files
Converting HDRU files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.
Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.
User reviews
From those who tried it
Average User Rating:Last updated on June 26, 2026
Questions & Answers
HDRU files: Frequently Asked Questions
What are HDRU files?
The HDRU image format is not commonly used and is specifically linked to an outdated image software, Apollo HDRU. Viewing HDRUs with standard image viewers can be a challenge due to their rarity and age. For this reason, it is recommended to convert HDRUs to more widely accessible formats such as PNG or JPG, if you happen to come across one.
Can reaConverter open HDRU files?
reaConverter fully supports the HDRU file format – open, edit, and export HDRU files to any other popular file format with ease.
How do I change HDRU to another format?
reaConverter is a user-friendly tool for converting HDRU files. Once installed on your computer, it allows you to convert all your .hdru files at once with just a few clicks. You can even convert hdru images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert HDRU online?
If you only want to convert a few HDRU files, you are welcome to try our free online HDRU converter.
How can I turn HDRU files on my computer to another format?
The best way to convert HDRU files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from HDRU.
How can I automate HDRU files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert HDRU files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line hdru converter.
What else can I do with reaConverter?
Convert vector filesChange image DPIConvert GIS filesConvert Gerber filesConvert picture color space
What formats can I convert a HDRU file to?
Discover More
Beyond HDRU conversion
Convert .hdru files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
