SUN Converter

Get reaConverter, our fast and easy SUN file converter software. It will help you to convert multiple .sun files in one go.

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reaConverter
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SUN Files
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How to Convert .sun Files in Bulk

1. Install reaConverter

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

2. Select SUN Files

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

3. Start Conversion

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

Convert SUN on your PC

For quick and effortless SUN 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 SUN 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 June 25, 2025
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"My photography business relies on fast, accurate processing of images. With reaConverter’s Watch Folder, I drop my RAW photos into a folder and they’re instantly converted to high-res JPEGs with custom naming and watermarking. It’s streamlined my post-processing more than I imagined possible."
Emily R.
Emily R.
Photographer
"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
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
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
"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

SUN files: Frequently Asked Questions

What are SUN files?

The SUN format is part of a group called Sun Raster Images, also including RAST, RAS, SR and SCR. All were designed by Sun Microsystems for its UNIX workstations and might not be compatible with other platforms. SUN images can be black-and-white or colored, including several types of color depths.

Can reaConverter open SUN files?

reaConverter fully supports the SUN file format – open, edit, and export SUN files to any other popular file format with ease.

How do I change SUN to another format?

reaConverter is a user-friendly tool for converting SUN files. Once installed on your computer, it allows you to convert all your .sun files at once with just a few clicks. You can even convert sun images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert SUN online?

If you only want to convert a few SUN files, you are welcome to try our free online SUN converter.

How can I turn SUN files on my computer to another format?

The best way to convert SUN 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 SUN.

How can I automate SUN 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 SUN 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 sun converter.

What else can I do with reaConverter?

Convert PDF filesWatermark photosConvert Gerber filesCrop photoConvert GIS files

What formats can I convert a SUN file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  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  svg  svgz  tga  tif  tiff  webp  webpll  wmf  wmz  wpg  wrl  xbm  xpm 

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