Websites to Tree Structure

eXtrigo is a knowledge-based online community designed for collaborative learning, goal tracking, and skill development. It leverages crowdsourced wisdom to help users organize information, manage personal and shared goals, and connect with others who share similar interests. With robust features like hierarchical note-taking, goal management, and privacy-focused options, eXtrigo serves as both a productivity tool and a social network.

Gruik is a powerful, free, and open-source note-taking service designed for users who value privacy, organization, and control over their data. Offering robust features like hierarchical organization, offline access, rich text formatting, and synchronization options, it provides a flexible platform for managing notes, ideas, and personal knowledge wikis.

Hackpad is a powerful web-based collaborative real-time text editor designed for teams. It facilitates simultaneous document editing, note-taking, and brainstorming, ensuring everyone stays in sync.

Nimbus Note is a versatile note-taking application and information organizer designed for capturing, managing, and sharing notes, documents, and multimedia content. It offers cross-platform sync, robust organization features like nested folders, and tools for web clipping and screen capture.

Leanote is a versatile self-hosted note-taking application that blends rich text editing with Markdown support. It offers seamless synchronization across multiple devices and features built-in blog publishing capabilities, making it a powerful tool for both personal information management and content creation.

Oinker revolutionizes how you manage conversations, tasks, and knowledge. It transforms your chats into dynamic workspaces for organized ideation, project management, and effortless information sharing, blurring the lines between communication and productivity.