Lucidchart

Freemium

Lucidchart is a web-based application to draw diagrams.

Dia

Open Source

Dia is free and open source drawing software.

XMind

Freemium

XMind is the most professional and popular mind mapping tool.

Freeplane

Open Source

Freeplane is a free, open source software application for creating mind maps and electronic outlines.

Visual Understanding Environment

Open Source

Visual Understanding Environment or VUE is a free, open source concept mapping application written in Java.

PlantUML

Open Source

PlantUML is an open-source tool allowing users to create UML diagrams from a plain text language.

MindNode

Commercial

MindNode makes mind mapping delightful.

Edraw Max

Commercial

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

iMindMap

Commercial

iMindMap is the official Mind Mapping software.

Scapple

Commercial

Scapple is an easy-to-use tool for getting ideas down as quickly as possible and making connections between them.

FreeMind

Open Source

FreeMind is a free and opensource mind mapping application written in Java.

yEd Graph Editor

Free

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

LibreOffice - Draw

Open Source

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

TheBrain

Freemium

TheBrain, formerly branded PersonalBrain, is a mind mapping and personal knowledge base software.

MindManager

Commercial

MindManager is a commercial mind mapping software application developed by Mindjet. The software provides ways for users to visualize information in mind maps…

Docear

Open Source

Docear is an academic literature suite. Docear bundles several applications for academics. As of now, these applications are BibTeX based reference management…