Coggle is a web-based tool for visualizing and applying non-linear structuring to information. Though Coggle has been used for mind mapping, it is primarily a method of documenting branching and non-linear information, and encompassing multiple perspectives. It utlizes a drag and drop interface for integrating images, permits multiple users to edit at the same time without causing data conflicts, and supports Markdown and LaTeX formatting. Coggle diagrams can be interlinked, branches of one diagram can be spawned off into its own diagram connected back to the original, and individual branches can be linked via hashtags. The tool includes an API that permits users to interface their diagrams with other programs and manupulate or examine them, and diagrams can also be exported in various formats such as plain-text outline, vector PDFs or images. Coggle is free except where users require more than 100 monthly active users or a closed source version.

Visual Understanding Environment (VUE) is a free, open source application for mapping concepts, ideas and digital content. It enables users to generate nodes and links, and apply a simple set of tools to explore the relationships. VUE is, in the words of its developers, an application to "integrate, organize and contextualize electronic content" in research or learning environments. Its tools include visualization, dynamic content mapping, semantic mapping, enhanced pathways and search functions.

Creately is a web based diagramming tool with real-time collaboration to work together on diagrams. If you're not comfortable storing data on the cloud you can use the desktop version. It lets you create workflows, mind maps, concept maps, business process models, wire-frames, org charts and many more diagram types useful in research projects.

CMAP allows users to create, navigate, and share concept maps that can easily be displayed online using HTML and Javascript.

Text 2 Mind Map is a web-based tool for mind mapping. Very basic interface and functionality. Requires users to structure information in a linear text outline, which it returns as a diagram.

Popplet is an online mind mapping and collaborative brainstorming tool.

Exploratree is a web-based library and editing application for "interactive thinking guides," which are templates useful for mind mapping, brainstorming, planning, and visualization. Originally developed for use in the classroom, to help students refine and focus their ideas, as well as manage plans to further their investigation. Thinking guides can be edited, printed, and downloaded directly from the browser.

bubbl.us is a web-based mind mapping tool, useful for organizing ideas, brainstorming, analyzing relationships, and visualizing data. Simple interface, with basic and easily understood functionality. Free to try without creating an account. Also available as an iOS application for iPad.

Free account allows creation of three mind maps, with minimal customization (e.g., text size and formatting, bubble color and hierarchy)

Expanded functionality, export options, and unlimited map creation with upgraded accounts

Monthly or annual subscription options for individual account upgrade, including 30-day free trial

Group licensing option offered for collaborative use by teams, including custom branding

Eligible teams may apply for educational discount by emailing support@bubbl.us