CmapTools!

Lucidchart is an online diagram and flowchart software that supports Microsoft Office Visio import and can work on any operating system. The easiest way to draw flowcharts, wireframes, UML diagrams, network diagrams, mind maps, iPhone mockups, site maps and more. Work together in real time with your team and clients! Along with the online version, Lucidchart also has a downloadable solution that runs on Mac, Windows and Linux; this enables offline editing at any time! »

yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams, organization charts, mind maps, and many other kinds of diagrams, graphs, and networks. Choose from a wide range of highly sophisticated layout algorithms to automatically arrange diagrams in no time. An intuitive and visually appealing user interface makes creating diagrams fun. Once a diagram has been created, it’s easy to save, print, or export it to popular formats like PDF, SWF, EMF, SVG, JPEG, GIF, PNG, or HTML image maps. »

Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.

Microsoft Office Visio makes it easy for IT and business professionals to visualize, explore, and communicate complex information. Go from complicated text and tables that are hard to understand to Visio diagrams that communicate information at a glance. Instead of static pictures, create data-connected Visio diagrams that display data, are easy to refresh, and dramatically increase your productivity.

Lucidchart is an online diagram and flowchart software that supports Microsoft Office Visio import and can work on any operating system. The easiest way to draw flowcharts, wireframes, UML diagrams, network diagrams, mind maps, iPhone mockups, site maps and more. Work together in real time with your team and clients! Along with the online version, Lucidchart also has a downloadable solution that runs on Mac, Windows and Linux; this enables offline editing at any time! »

Mindomo is the easiest online software for creating mind maps, concept maps, outlines and various other types of diagrams. The following features make it the perfect choice both for business and education:* real-time collaboration* you can work on maps even if your internet connection is down, and your changes will be automatically synchronized when the connection is restored* playback mode that shows you how a map was built* maps can be turned into presentations or real-time editable outlines* Google Apps and various LTI integrations (Canvas, Moodle, Blackboard, Desire2Learn, itslearning)* great variety of exports (PDF, RTF, PPT, TXT, OPML, MPX, HTML, ZIP, PNG, XLS, MOM, MM, MMAP)* Google Drive, Dropbox, FTP and ZIP backups »

Google Drawings, part of Google Drive , allows users to collaborate creating, sharing, and editing images or drawings. It can be used for creating charts, diagrams, designs, flow-charts, etc. It contains a subset of the features in Google Drive - Slides but with different templates. Its features include laying out drawings precisely with alignment guides, snap to grid, auto distribution, and inserting drawings into other Google documents, spreadsheets, or presentations. »

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

Coggle is a simple, beautiful, powerful way of structuring information. It's designed to help you understand things, and then share your knowledge by arranging your document in the same way that your mind works. This way of working is called mind-mapping, and is a very powerful way of learning, storing and sharing information.

Create deep visual documents, adaptable and multi-level diagrams, flowcharts, concept maps, mind maps and models.Users can:- Define their own types of nodes and connectors, to reuse nomenclature, symbols, details structure.- Add Details to your Ideas (attachments, links, custom-fields, tables)- Ideas can have a whole new diagram inside (multilevel/composable)- Can generate a report for the whole Composition document.- Reports are exportable as PDF/XPS and to HTML.- Collapse/Expande supertrees or subtrees of connected ideas.- Add Markers to your ideas (predefinables).- Include rich descriptions, versioning, complements (stamps, regions/boundaries, call-outs, notes, legends, cards). »

Creating flowcharts, organizational charts, business diagrams, science illustration, network diagrams, mind map and lots more. Free Examples Download.

Compendium is a software tool providing a flexible visual interface for managing the connections between information and ideas.

Aibase is a universal software:Knowledge Builder, Learn Helper, Hyperlink System, Outliner (with notes), Vector Graphics Editor, Calculator (is document-content; extensible by Python), Concept-Mapper, Mind-Mapper and Flow-Charter. Aibase is ideal for knowledge work in areas of larger complexity (interlinking).

Protégé is a free, open source ontology editor and knowledge-base framework.

The AXON Idea Processor provides an environment that supports the thinking processes. It helps you to create, communicate, explore, plan, compose, design, learn... and:Work with ideas & concepts rather than words.See the big picture and not get lost in details.Analyze and solve more complex problems.Stimulate creativity and discovery.Effectively amplify your mental potential.Focus attention and minimize distractions.Reduce mental fatigue and writers' blocks.

PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways. It provides a basic set of features for pathway drawing, analysis and visualization. Additional features as plugins.