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