SYN Converter

Offline SYN converter with professional output. reaConverter keeps your files secure while you work.

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reaConverter
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SYN Files
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How to Convert .syn Files in Bulk

1. Install reaConverter

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

2. Select SYN Files

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

3. Start Conversion

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

Convert SYN on your PC

For quick and effortless SYN 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 SYN 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 November 30, 2025
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
Satisfied Customer
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"
Kevin Harris
Kevin Harris
Happy User
"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"
Emily K.
Emily K.
E-commerce Entrepreneur
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"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

SYN files: Frequently Asked Questions

What are SYN files?

SYN is an old and obsolete image format also known as Synthetic Universe. It is similar in size and features with the SYNU format, and might be equally difficult to open via regular image viewers. In case you found or were sent such a file, it's probably best to convert it to a more accessible format before trying to open it.

Can reaConverter open SYN files?

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

How do I change SYN to another format?

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

Can I convert SYN online?

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

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

The best way to convert SYN 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 SYN.

How can I automate SYN 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 SYN 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 syn converter.

What else can I do with reaConverter?

Change format settingsChange DPIConvert DICOM filesChange photo sizeConvert GIS files

What formats can I convert a SYN 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 SYN file converter that saves you time and effort by converting multiple .syn files into different formats.
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