ThinkComposer AlternativesMind Mapping Tools and other similar apps like ThinkComposer

Notesnook is a simple and cross-platform private notes app that keeps your notes organized and synced on your phone, tablet and computer. Take notes, capture ideas, create to-do lists, keep a journal, write your assignments and manage projects, we have got you covered.

Hierarchical note-taking software that is free, open-source, cross-platform. Features include rich text, syntax highlighting, multi-level lists, embedded files, customizable interface, code execution, PDF export, spell check, images & tables, and comprehensive project management support.

Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.

yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...

Trilium Notes is a hierarchical note taking application.

Xmind is a versatile tool for mind mapping and brainstorming available across Windows, macOS, Linux, and mobile platforms. Widely adopted with over 100 million downloads and a 4.8-star rating, it offers extensive language support and automatic settings adaptation.

Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos (including raw photos from DSLR cameras) and all sorts of other files.

Free and open source, Java-based mind-mapping app for the desktop featuring a hierarchical editor that emphasizes folding.

Manuskript is an open-source tool for writers, with outliner, character management, plot development, distraction-free editor, etc.

Dendron is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. It supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.

TheBrain helps you organize all your Web pages, contacts, documents, emails and files in a context-driven visual map.

Create data-connected diagrams with real-time collaboration as part of the Office Suite. Ideal for IT and business professionals, it visualizes complex info with ease, providing intuitive tools for diagramming, mind mapping, and vector graphics.