This software allows for creation and execution of Nassi-Schneidermann diagrams. During execution user can trace value of diagram’s variables. Diagrams can be exported to PNG or SVG formats. Additionally, diagrams can be uploaded to external HTTP application.

Official Website on GitHub.com

Downloads

Windows (installer), version 20180911
Windows (ZIP archive, portable), version 20180911
Linux (64-bit only), version 20180911

NSBuilder is also available in chocolatey package manager for Windows: choco install nsbuilder