RRDiagram is a Windows Java application for creating syntax diagrams that mimic the structure of specific programming languages. Users can automatically translate abstract grammar rules into the corresponding graphical representations as well.

Syntax processing

The primary target audience of RRDiagram are software developers, language designers and educators who regularly deal with formal grammar definitions or parsers. It is possible to generate diagrams from source code or BNF notation. You are able to work with complex constructs such as:

Loops;
Sequences;
Logical choices, etc.

Customization

Similar to WaveDrom, users can adjust colors and fonts on the diagram to suit personal preferences. Moreover, there are tools for rearranging individual elements and switching between different visual layouts. Resulting graphs are saved to the compact SVG file format. This is especially advantageous for online publication or sharing via email.

This utility is ideal for creating visually appealing and informative documentation related to programming languages or DSLs. Additionally, it facilitates communication between separate teams.

Features

free to download and use;
intended for converting code snippets into syntax diagrams;
requires Java Development Kit to function correctly;
you can process complex grammar definitions and other constructs;
compatible with all modern versions of Windows.