ConceptDraw PRO Alternatives for Windows

Lucidchart is a web-based application to draw diagrams.

Dia is free and open source drawing software.

yEd is a free general-purpose diagramming program with a multi-document interface.

Pencil Project is an open-source GUI prototyping tool.

Microsoft Visio (formerly Microsoft Office Visio) is a diagramming and vector graphics application and is part of the Microsoft Office family.

LibreOffice is a full-featured office productivity suite that provides a near drop-in replacement for Microsoft Office.

Creately is a collaborative diagramming and design software used by teams around the world to communicate more effectively.

Axure RP is a wireframing, rapid prototyping, documentation and specification software tool aimed at web and desktop applications.

SmartDraw is the smartest way to draw any type of chart, diagram: flowcharts, org charts, floor plans, network diagrams, and more.

Edraw Max is comprehensive mind mapping and planning tool network diagrams, floor plans, workflow diagrams, business charts, and engineering diagrams.

Diagram Designer is a vector graphics editor that allows you to create UML class diagrams, illustrations, flowcharts and slide shows.

Nevron Draw is a software for creating flowcharts and diagrams.