Free diagram software for windows

Diagrams is, as its name says, an advanced program to draw diagrams. Diagrams is, as its name says, a program designed to allow you to draw diagrams in an easy and quick way but having access to a lot of useful features.
Main features:
- sticky shape connectors (single and multiple segment) ;
- custom shape data;
- printing with preview;
- predefined shapes for: Flow, UML, digital and process diagrams;
- user-defined shapes with visual shape designer;
- scripted html reports on custom shape data.

Diagram Draw represents a easy-to-use diagram create software. The success of any enterprise depends not only upon the meticulous deduction but also in a great extent, on the way you communicate the information.
When intricate text information fails to satisfy your needs, Diagram Draw stretches a helping hand. Using a competently organized set of tools, you can create drawings and diagrams that will ease the process of data communication within your workgroup.
The creators of Diagram Draw did their best to provide users with auspicious working conditions. The workspace is organized to be comfortable and effective. You control your navigation using tabbed pages, store different data with custom properties and define objects shapes with size and position tools while such useful features as pan and zoom make your orientation in the project as easy as a pie.
The conjoint toolbar provides easy access to any tool. If you decide to add some text information to the diagram or drawing you wont need to use any external programs. To apply a text field, simply choose the Add Text command, which is available in the menu and on the toolbar.
Diagram Draw supports document recovery, so in case something goes wrong, the program will allow you to save files, and the valuable information wont be lost. As you see within one small but powerful program you get a solution for an enterprise of any size helping you to convey the information in a comprehensible form.

Net Activity Diagram (NAD) is a Windows 9x/NT/2000/ME/XP application that monitors your computer Internet activity. It monitors the main Internet protocols (TCP, UDP) and displays the amount of transferred data. NAD provides a simple and comfortable user interface, easy to understand setup and full control over the visualization process.

Net Activity Diagram (NAD) is an application that monitors your computer Internet activity. It monitors the main Internet protocols (TCP, UDP) and displays the amount of transferred data. NAD provides a simple and comfortable user interface, easy to understand setup and full control over the visualization process.

DiaCze - diagram drawing & modelling software.
You will be able to use DiaCze - diagram drawing software UML, ERD, ... in order to create UML, UML 2.0, EML diagrams, ER, ERD, state diagrams, network topology schema, Cisco networks, component models, process models, business models, ...
In many ways - this application contain more functions than Microsoft Visio and it is free.

A help-documentation tool for C++ or java developers Basically Clara paints a diagram - a clara diagram - from a given java or c++ class.
With clara you can visualize your class as if it were a chip with pins for input - representing the input parameters of the methods - and pins for output - representing the return type of the functions.
Of course the diagram will be drawn by clara automatically, there is no need (and no chance) of manually drawing anything.
Clara gets the needed information in two ways : using reflection in java and parsing the header file in C++.
Clara can also draw a call-diagram of the class if the sources are found, note though that for the call-diagram an extra tool is needed and it has to be installed apart.