About the ODA

The Open Design Alliance is committed to promoting open, industry-standard formats for the exchange of CAD data and CAD legacy data.

Teigha™, the ODA's software development platform, provides tools for the creation of a wide range of technical graphics applications. Teigha supports the use of both .dwg and .dgn files and provides import and export capabilities to other file formats.

The Open Design Alliance  also maintains and publishes the Open Design Specification for .dwg files.