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SYNU Converter
Convert SYNU files with automation. reaConverter supports Watch Folders, right-click conversion, and the command line.
How to Convert .synu Files in Bulk
1. Install reaConverter
2. Select SYNU Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless SYNU 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 SYNU 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
SYNU files: Frequently Asked Questions
What are SYNU files?
SYNU is a rare graphics format associated with an old image processor known as Synthetic Universe. An alternative extension used by this is program is SYN. Both formats are considered old and obsolete, so opening them using regular image viewers is probably difficult.
Can reaConverter open SYNU files?
reaConverter fully supports the SYNU file format – open, edit, and export SYNU files to any other popular file format with ease.
How do I change SYNU to another format?
reaConverter is a user-friendly tool for converting SYNU files. Once installed on your computer, it allows you to convert all your .synu files at once with just a few clicks. You can even convert synu images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert SYNU online?
If you only want to convert a few SYNU files, you are welcome to try our free online SYNU converter.
How can I turn SYNU files on my computer to another format?
The best way to convert SYNU 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 SYNU.
How can I automate SYNU 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 SYNU 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 synu converter.
What else can I do with reaConverter?
Convert vector imagesChange image DPIConvert GIS filesConvert CAD formatsChange file date
What formats can I convert a SYNU file to?
Discover More
Beyond SYNU conversion
Convert .synu 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.
