Starforge Kotar is a SysML v2 web IDE from Planetary Utilities. Running entirely in the browser, Kotar gives systems engineers a place to author, edit, and explore SysML v2 models as code — part of the Starforge family of tools leading the System-as-Code paradigm shift.
Planetary Utilities helps aerospace and large-scale engineering programs make sense of knowledge that’s scattered across rigid, disconnected platforms. Its flagship product, Starforge, gives every contributor a shared, conversational workspace to interrogate engineering data, trigger automations, and coordinate work — backed by hands-on MBSE and SysML v2 consulting and training.
Starforge Kotar
Access to this tool has been generously donated by
Contact Info:
INCOSE Contact and Planetary Utilities Contact for Starforge Kotar: Johannes Gross: [email protected]
General SE Lab Inquiries: [email protected]
Please read carefully the INCOSE SE Lab Terms and User Agreement before using this site.
By Accessing or using the INCOSE SE Lab, you agree to be bound by this agreement.
Resources

The Systems Engineering Tools Database (SETDB) offers information on the Tool & Vendor:
- SETDB Tool: Starforge Kotar
- SETDB Vendor: Planetary Utilities
Starforge Kotar Resources: