Convert SI to RAD

Why upload sensitive SI files to online converters? reaConverter processes everything locally — convert to RAD with zero cloud risk.

Looking to change SI files to RAD format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

Download
reaConverter
Convert
SI to RAD
Online
Convert

How to Convert Multiple SI Files to RAD?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

reaConverter logo
Install reaConverter

2. Load your SI files

Launch reaConverter and load the SI files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop SIs directly into reaConverter or use the folder browser to load entire directories.

Load your SI files into reaConverter

3. Select RAD as output format

Set RAD as output format and select where to save your converted files. Customize quality settings if needed.

Select RAD as output format

4. Start SI to RAD conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted RAD files will appear in the destination folder as soon as processing completes.

SI to RAD Converter

reaConverter offers the fastest, simplest solution for converting your SI files into RAD in seconds - all files processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your files

Converting SI files for use in a workflow? 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 January 25, 2026
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"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
"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
"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'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User

SI to RAD Conversion: FAQ

What are SI files?

The SI format is associated with Softimage, a program first released in 1988 for Silicon Graphics workstations. The software specialized in creating 3D animation for the film, broadcasting, gaming and advertising industries, and by 2000 it was replaced by an upgraded version called Softimage XSI. SI images are currently considered rare and obsolete.

What are RAD files?

The RAD format is supported by a ray tracing application called Radiance, which contains several tools that support lighting simulation and measuring light levels. RAD files are often used in architectural project to design and evaluate lighting systems. Apart from lighting features, they can also save objects and materials, and they serve as input for OCT files that facilitate the scene rendering.

Can reaConverter convert SI to RAD?

Yes! reaConverter instantly converts .si to .rad with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert SI to RAD online?

If you only need to convert a few SI files to RAD format, feel free to try our free online free online SI to RAD converter — perfect for small batches with no installation needed!

How can I turn SI files into RAD on my computer?

The best way to change SIs to RADs on your PC is to install 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 SI to RAD.

How can I automate SI to RAD files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert SI files to RAD using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line si to rad converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPIConvert CAD formatsSet bit depthConvert vector files

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software