List of Diagramming Software

Software Ideas Modeler is a lightweight and powerful CASE tool. It helps you to describe and design your software and processes using UML 2.4, BPMN 2.0, SysML 1.3, ERD, flowcharts and other diagrams.

Dia is roughly inspired by the commercial Windows program 'Visio,' though more geared towards informal diagrams for casual use. It can be used to draw many different kinds of diagrams. It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and many other diagrams. It is also possible to add support for new shapes by writing simple XML files, using a subset of SVG to draw the shape.

Create professional diagrams to simplify complex information with updated shapes, collaboration tools and data-linked diagrams.

UML design and business analysis tool for modeling, documenting, reverse engineering, building and maintaining object-oriented software systems, fast and intuitive. Great features, great price.

SmartDraw software is the fastest and easiest way to make presentation-quality flowcharts, org charts, floor plans & any other chart or diagram in just minutes.

Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for ...

A UML and BPMN modeling tool.

UMLet is a free, open-source UML tool with a simple user interface: draw UML diagrams fast, produce sequence and activity diagrams from plain text, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements. UMLet runs stand-alone or as Eclipse plug-in on Windows, OS X and Linux.

yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button.