TeamMapper
A self-hostable mindmapping tool with real-time collaboration, import/export, and GDPR-compliant data handling.
What is TeamMapper?
TeamMapper is an open-source mindmapping tool that allows users to host and create their own mindmaps. It solves the need for collaborative brainstorming by enabling real-time team sessions with features like shared editing, customization, and GDPR-compliant data handling. The project is a fork of the discontinued mindmapp, enhanced with team collaboration capabilities.
Teams, educators, and organizations seeking a self-hosted, privacy-focused mindmapping solution for workshops, idea structuring, and collaborative planning.
Developers choose TeamMapper for its self-hosted deployment, real-time collaboration via WebSockets, and strong data privacy controls, offering a free alternative to commercial mindmapping tools with full customization and ownership.
Overview
Mindmapping made simple: Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate on mindmaps.
Use Cases
Best For
- Conducting collaborative brainstorming sessions in real time
- Self-hosting mindmapping tools for data privacy and control
- Structuring ideas in workshops or educational settings
- Exporting mindmaps to multiple formats like PDF, SVG, or Mermaid
- Managing GDPR-compliant data with automatic deletion policies
- Integrating mindmapping into team workflows with shareable links and QR codes
Not Ideal For
- Organizations needing instant, cloud-based mindmapping without infrastructure setup
- Projects requiring permanent mindmap storage without automatic deletion policies
- Teams that prefer out-of-the-box features without enabling flags like real-time collaboration or AI
- Large enterprises looking for vendor-supported, commercially backed software with SLA guarantees
Pros & Cons
Pros
Enables shared editing sessions using WebSockets and Yjs, supporting both view and edit permissions for team brainstorming, as highlighted in the features list.
Allows adding images, pictograms, colors, fonts, and links to nodes, making mindmaps visually engaging, with evidence from the customization features in the README.
Supports import and export to JSON, Mermaid, SVG, PDF, and PNG, facilitating easy sharing and integration with other tools, as specified in the interoperability section.
GDPR compliant with auto-deletion after 30 days by default via DELETE_AFTER_DAYS, ensuring data privacy without additional configuration, noted in the features.
Cons
Requires Docker Compose, PostgreSQL configuration, and environment variable management, which can be complex for users unfamiliar with containerization, as seen in the detailed deployment steps.
Key features like pictograms and AI are disabled by default and need build-time or runtime changes via flags or environment variables, adding deployment complexity, as admitted in the settings documentation.
Based on the discontinued mindmapp project, which might introduce maintenance issues or limit future enhancements, as acknowledged in the project origin.
Frequently Asked Questions
Related Projects
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AFFiNE Community EditionNext-gen knowledge base that brings planning, sorting and creating all together. Privacy first, customizable and ready to use (alternative to Notion and Miro). (Demo, Source Code) MIT/AGPL-3.0 Docker
SiYuanA privacy-first personal knowledge management software, written in typescript and golang. (Source Code) AGPL-3.0 Docker/Go
LibreKBWeb-based knowledge base solution. A simple web app, it runs on pretty much any web server or hosting provider with PHP and MySQL. (Source Code) GPL-3.0 PHP
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