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Software · Office & notes

Mentis

Free and open-source desktop app for students: mind maps, Gantt plans, notes and presentations. Built with C++ and Qt, with an MCP server.

  • Completely free
  • Open source
  • No account

Overview

Mentis is a diagramming program.

Features described in its GitHub repository: attachments.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Free and open-source desktop app for students: mind maps, Gantt plans, notes and presentations.” — GitHub, 10 November 2026
  • “Mentis is a free and open-source desktop application for students: mind maps, Gantt plans, notes and presentations in one place, with images, attachments, links and SVG stickers, so that everyone can study…” — GitHub, 10 November 2026

At a glance

All of Mentis is free: no feature is locked behind a paid plan, and its code is open.

Its licence (AGPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

Sources and checks

  • Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) —
  • Last technical check: 9 November 2026
  • Description from github.com — Dépôt GitHub simozock/Mentis (AGPL-3.0-only)

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