100% Secure & Private
RST Converter
Survey, cadastral and client data should not go through an upload form. reaConverter converts RST files offline, with no size limit.
How to Convert .rst Files in Bulk
1. Install reaConverter
2. Select RST Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless RST 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.
GIS Toolkit
Do more with your GIS data
Need RST data as something anyone can open? reaConverter renders imagery and elevation grids into standard images and documents without QGIS or ArcGIS, and works through whole folders in one pass.
- Render imagery, elevation grids and scanned charts to TIFF, PNG, JPG or PDF
- Resize, crop and set DPI on the output in the same run
- Bring tiles, scenes and grids from many sources into one consistent format
- Convert incoming survey and field data automatically with Watch Folders
- Script GIS conversions from the command line for pipelines and scheduled jobs
- Keep cadastral, utility and client data on your PC: nothing is uploaded
User reviews
From those who tried it
Average User Rating:Last updated on July 29, 2026
Questions & Answers
RST files: Frequently Asked Questions
What are RST files?
RST (Idrisi Raster A.1) is a raw raster format that is described by a group of small companion files. The .rst file contains only the pixel values, one layer per file, and the text file with the .rdc extension, whose first line reads IDRISI Raster A.1, lists the file title, the data type, the number of columns and rows, the minimum and maximum values, the value that marks missing data, and the name of the reference system. The details of that system are kept in a .ref file, either in the same folder or in the program folders. The data type may be byte, with values from 0 to 255, integer, which is a signed 16-bit number, or real, a 32-bit floating-point number. There is also a 24-bit color type, in which the three channels are stored together for each pixel in the order blue, green, and red. A color table, if the map has one, is stored in a separate .smp file. To convert such a raster to graphics, a program reads the .rdc file first, loads the .rst values according to the declared type, marks missing cells as transparent, and applies the .smp palette if it exists. A classified map keeps its category colors, an elevation layer receives a grayscale or color ramp, and the 24-bit type is saved directly as a color picture. The result can be saved as PNG, JPEG, TIFF, or GeoTIFF. Supported by TerrSet and Geomatica.
Can reaConverter open RST files?
reaConverter fully supports the RST file format – open, edit, and export RST files to any other popular file format with ease.
Do I need QGIS or ArcGIS to convert RST files?
No. reaConverter reads RST files on its own, so the conversion needs no GIS installation and no licence. It handles whole folders at once, which suits survey archives, tile sets and data deliveries that have to reach people working in other software.
How do I change RST to another format?
reaConverter is a user-friendly tool for converting RST files. Once installed on your computer, it allows you to convert all your .rst files at once with just a few clicks. You can even convert RST files directly from Windows Explorer using the right-click menu — fast and convenient.
Why choose offline conversion with reaConverter?
Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.
Can I convert RST online?
If you only want to convert a few RST files, you are welcome to try our free online RST converter.
How can I turn RST files on my computer to another format?
The best way to convert RST 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 RST.
How can I automate RST 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 RST 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 rst converter.
What else can I do with reaConverter?
Convert DICOM filesCrop photoTrace images to vectorChange bit depthConvert vector files
What formats can I convert a RST file to?
Discover More
Beyond RST conversion
Convert .rst files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
