Blumind is a lightweight and powerful mind mapping tool. It features multiple document editing, multiple export formats, and layouts from org charts, tree.

bubbl.us is a mind map tool. It's a visual thinking tool for structuring information, helping you to better understand, remember and generate new ideas.

Coggle is a freeware mind-mapping web application. Like other mind-mapping software, Coggle produces hierarchically structured documents, like a branching tre…

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

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

Diagrammix is a tool for efficiently building attractive diagrams and flowcharts.

Bonita BPM is an open-source business process management and workflow suite.

Cacoo is a user friendly online drawing tool. Multiple users editing the same diagram means Real-Time Collaboration.

CorelDRAW Graphics Suite provides users with professional-quality design tools for graphic artists.

Dia is free and open source drawing software.

draw.io is free online diagram software for making flowcharts, process diagrams, etc

Diagramo is an online flowchart software. It's FREE and Open Source ( GPL ) It's pure HTML5 Share and collaborate.