SIM Converter

Convert SIM files on your own machine instead of an upload form. reaConverter processes everything locally, with no size limits.

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reaConverter
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SIM Files
Online

How to Convert .sim Files in Bulk

1. Install reaConverter

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

2. Select SIM Files

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

3. Start Conversion

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

Convert SIM on your PC

For quick and effortless SIM 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 SIM 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 May 30, 2026
"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
"We use reaConverter in our department to handle image and document conversions for multiple teams. The Watch Folders function is brilliant — I configured different folders for different workflows, and now everything happens automatically in the background. No more manual conversions or missed files. Rock-solid performance!"
James L.
James L.
IT Manager
"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
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
"Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly."
Mark Jones
Mark Jones
Happy User
"Before reaConverter, I was the ‘File Conversion Guy’ at work — a title I never asked for and definitely didn’t want. Then I found the Watch Folders feature, and suddenly I was free! Now, files convert themselves while I sip coffee and pretend I'm still working hard. My coworkers think I'm a wizard. Thanks reaConverter, for saving my sanity and boosting my fake productivity!"
Ben H.
Ben H.
Overwhelmed Office Hero

SIM files: Frequently Asked Questions

What are SIM files?

The Aurora image format, which is rare and outdated, is often associated with the SIM extension. It is possible that this format is connected to earlier versions of a 3D animation software package with the same name. SIM files are not commonly used and can be challenging to view using standard image viewers.

Can reaConverter open SIM files?

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

How do I change SIM to another format?

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

Can I convert SIM online?

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

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

The best way to convert SIM 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 SIM.

How can I automate SIM 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 SIM 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 sim converter.

What else can I do with reaConverter?

Convert RAW formatsCopy EXIF dataConvert CAD formatsSet picture bit depthConvert GIS files

What formats can I convert a SIM 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 

Beyond SIM conversion

Convert .sim 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.
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