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ST-Developer
The Best for Sixteen Years!
STEP Application Protocols, STEP-NC, Industry Foundation Classes, or CIMsteel CIS/2 -- If you need to support any of them, then you need ST-Developer. ST-Developer

Since 1991, ST-Developer has been the most reliable, best performing, easiest to use, and most broadly supported STEP SDK available.

Our latest release, ST-Developer v12 builds on this tradition by adding support for Part 28 XML read/write, nine more APs, Visual Studio 2005, and many other refinements.

See what's new in v12!

Find out why ST-Developer is used worldwide in more commercial tools and projects than any other product!

Supports Standards for:
  • Drafting
  • CAD Design & Analysis
  • Electrical Design
  • Shipbuilding
  • Building and Construction
  • Piping and Process Plant
  • Manufacturing

    As well as new and custom protocols!

    Questions? Contact Us!

    STEP Geometry