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SSI Converter
Turn SSI files into JPG, PNG, PDF and 700+ other formats. reaConverter handles bulk conversion with consistent quality.
How to Convert .ssi Files in Bulk
1. Install reaConverter
2. Select SSI Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless SSI 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 SSI 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 June 30, 2026
Questions & Answers
SSI files: Frequently Asked Questions
What are SSI files?
SSI is an old image format associated with SriSun, a currently obsolete graphics program. In case you found or were sent such a file, it was probably created a long time ago and difficult to open using regular image viewers.
Can reaConverter open SSI files?
reaConverter fully supports the SSI file format – open, edit, and export SSI files to any other popular file format with ease.
How do I change SSI to another format?
reaConverter is a user-friendly tool for converting SSI files. Once installed on your computer, it allows you to convert all your .ssi files at once with just a few clicks. You can even convert ssi images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert SSI online?
If you only want to convert a few SSI files, you are welcome to try our free online SSI converter.
How can I turn SSI files on my computer to another format?
The best way to convert SSI 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 SSI.
How can I automate SSI 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 SSI 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 ssi converter.
What else can I do with reaConverter?
Change format settingsCopy metadata (EXIF, IPTC)Convert RAW photosConvert CAD formatsSet manual file date
What formats can I convert a SSI file to?
Discover More
Beyond SSI conversion
Convert .ssi 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.
