UNI Converter
UNI to any format — batch mode, offline, no uploads. reaConverter gives you full control over quality and output settings.
How to Convert .uni Files in Bulk
1. Install reaConverter
2. Select UNI Files
3. Start Conversion
Convert UNI on your PC
For quick and effortless UNI 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.
Do more with your files
Converting UNI 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
Average User Rating:Last updated on January 01, 2026
UNI files: Frequently Asked Questions
What are UNI files?
UNI is a rare image format associated with Brother fax machines. Brother is a Japanese brand with a long history in manufacturing electronical equipment for the printing and advertising industry, as well as sewing and embroidering. A UNI file most likely contains the image of a document that has been sent or received via a Brother fax machine. The format is now considered obsolete.
Can reaConverter open UNI files?
reaConverter fully supports the UNI file format – open, edit, and export UNI files to any other popular file format with ease.
How do I change UNI to another format?
reaConverter is a user-friendly tool for converting UNI files. Once installed on your computer, it allows you to convert all your .uni files at once with just a few clicks. You can even convert uni images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert UNI online?
If you only want to convert a few UNI files, you are welcome to try our free online UNI converter.
How can I turn UNI files on my computer to another format?
The best way to convert UNI 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 UNI.
How can I automate UNI 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 UNI 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 uni converter.
What else can I do with reaConverter?
Convert PDF filesWatermark photosConvert DICOM filesResize imageConvert Gerber files
What formats can I convert a UNI file to?
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