Part of the LibreOffice suite, Draw supports diagrams up to 300cm × 300cm and is suitable for technical drawings, posters, and general diagramming. It's completely free with an MPL-2.0 license.
The good news is that you do not need to jeopardize your security. The software world is rich with powerful, free, and open-source mind mapping tools. These alternatives are community-driven, transparent, and completely safe to use. Here are some of the best options available in 2025:
Mindomo offers a generous free tier that lets you create up to three complex mind maps. It includes basic features, sharing capabilities, and access across desktop and mobile devices.
If you're looking for a more legitimate and safe way to access Mindomo's premium features, consider these alternatives:
If you require maximum flexibility, Draw.io is a completely free, open-source diagramming application. It integrates perfectly with Google Drive, OneDrive, and GitHub, allowing you to create extensive mind maps, flowcharts, and network diagrams completely free of charge. Conclusion
: The official Free Plan allows you to create up to three maps with most core features, which is often enough for simple projects or students.