MindMeister
An old, stable mind-mapping tool with a free tier that keeps the features most vendors strip out: real-time collaboration, templates, presentation mode and AI generation all work without paying. The cap is on map count, three, which is a demo rather than a usable allowance. A German legal entity, EU hosting and ISO 27001 make it an easy sell to a compliance team.
Pros
- Free plan keeps collaboration, presentation mode and AI generation instead of stripping them
- Real-time editing with unlimited collaborators on every tier
- Exports to PDF, Word and PowerPoint for people who do not use the tool
- Running since 2007, with EU hosting, ISO 27001 certification and a published German legal entity
Cons
- Free plan caps you at three maps, which is a trial rather than a tier
- Per-user pricing adds up across a team compared with general whiteboard tools
- Attachments are limited to two per map below the Pro tier
- No documented public API