UNI Converter

UNI to any format — batch mode, offline, no uploads. reaConverter gives you full control over quality and output settings.

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reaConverter
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UNI Files
Online

How to Convert .uni Files in Bulk

1. Install reaConverter

Download reliable UNI conversion software to convert multiple .uni files and folders in one go.
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Install reaConverter

2. Select UNI Files

Select UNIs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load UNI files

3. Start Conversion

Click Convert to start the bulk conversion of all selected UNI files. The process will begin right away.
reaConverter - Start UNI 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.

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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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on April 26, 2026
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
Satisfied Customer
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I deal with hundreds of images daily, and reaConverter has been a lifesaver. The Watch Folders feature lets me automate file conversions without lifting a finger. I set up a folder for incoming files and it automatically resizes, renames, and converts them into the formats I need. It's like having a personal assistant!"
Sarah T.
Sarah T.
Graphic Designer
"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
Jamal Bailey
Satisfied Customer
"We receive artwork in all kinds of formats from clients. reaConverter takes care of converting them all to print-ready specs automatically using Watch Folders. It reduces errors, saves us time, and has improved our turnaround time with customers. Incredibly powerful software."
Michael D.
Michael D.
Print Shop Owner

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?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  dcm  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  glb  gltf  hpg  hru  ico  iff  iges  igs  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  rla  sgi  shp  step  stl  stp  svg  svgz  tga  tif  tiff  u3d  webp  webpll  wmf  wmz  wpg  wrl  x3d  xbm  xpm 

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Explore our efficient UNI file converter that saves you time and effort by converting multiple .uni files into different formats.
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