Easystructure is a tool to analysis C source files and display the structure of the source code in flowchart and hierarchical tree views. The tree view is a vertical display version of the Jackson block graphical methodology. Once the source has been parsed these views can be browsed/copied/printed to gain an understanding of the code. Flowcharts are displayed with the original source. A tree node may be expanded so as to show any contained statements of various types (e.g. jump type, return type). When parsed the source may be reformatted (beautified) according to the many options. The views can be printed, copied, or displayed with the original source.

The flowchart view may be printed or copied to the clipboard in wmf format. The flowchart appearance can be customised ,e.g. block size, font size, margins.

The tree view may be printed or copied to the clipboard in wmf format (the page dimensions can be set when copying). These are in the tree's current expanded state. An option exists for each tree node to include it's associated lines of original source. This is useful for documentation purposes or where you want to include the source comments.