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NC1 Converter
NC1 to STL, OBJ, STEP, IGES and more. reaConverter processes 3D files for sharing across different platforms.
How to Convert .nc1 Files in Bulk
1. Install reaConverter
2. Select NC1 Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless NC1 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 NC1 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
NC1 files: Frequently Asked Questions
What are NC1 files?
An NC1 file is an industry-standard CNC (Computer Numerical Control) data format widely used in structural steel design, detailing, and fabrication. Developed by the German Steel Construction Association (Deutscher Stahlbau-Verband - DSTV), it serves as the official industrial standard for steelwork manufacturing. Based on this DSTV standard, it functions as a machine-neutral bridge that transfers precise 3D part geometries directly from CAD/BIM software to automated fabrication machinery (such as CNC drills, saws, and plasma cutters).
Can reaConverter open NC1 files?
reaConverter fully supports the NC1 file format – open, edit, and export NC1 files to any other popular file format with ease.
How do I change NC1 to another format?
reaConverter is a user-friendly tool for converting NC1 files. Once installed on your computer, it allows you to convert all your .nc1 files at once with just a few clicks. You can even convert nc1 images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert NC1 online?
If you only want to convert a few NC1 files, you are welcome to try our free online NC1 converter.
How can I turn NC1 files on my computer to another format?
The best way to convert NC1 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 NC1.
How can I automate NC1 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 NC1 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 nc1 converter.
What else can I do with reaConverter?
Trace images to vectorChange bit depthConvert GIS filesConvert vector filesChange picture DPI
What formats can I convert a NC1 file to?
Discover More
Beyond NC1 conversion
Convert .nc1 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.
