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SIM Converter
Convert SIM files on your own machine instead of an upload form. reaConverter processes everything locally, with no size limits.
How to Convert .sim Files in Bulk
1. Install reaConverter
2. Select SIM Files
3. Start Conversion
Step by step
See It in Action
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.
Extra Tools
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.
User reviews
From those who tried it
Average User Rating:Last updated on July 28, 2026
Questions & Answers
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The Aurora image format, which is rare and outdated, is often associated with the SIM extension.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 PDFAdd watermark on imageConvert GIS filesConvert CAD formatsSet file date
What formats can I convert a SIM file to?
Discover More
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.
