TreeTime is described as 'Information organizer that stores text, numbers, and other data in linked trees. Mathematical operations like sums, ratios, and differences are calculated and updated on the fly. It exports to PNG, SVG, HTML, CSV, and plain text, and includes a configurable web interface' and is a Note-taking tool in the office & productivity category. There are more than 100 alternatives to TreeTime for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best TreeTime alternative is Obsidian, which is free. Other great apps like TreeTime are Joplin, ONLYOFFICE, Logseq and Anytype.
Cloud spreadsheet app featuring real-time editing, support for Excel and CSV import/export, chart building, formula functionality, integrated chat, access controls, cloud syncing, access via web and mobile platforms, scripting, embedding, templates, and Drive integration.
United States
SiYuan is a desktop Markdown Block-Reference and Bidirectional-Link note-taking application. Support fine-grained block-level reference and Markdown WYSIWYG.
China
Encrypted, privacy-focused digital storage with zero-knowledge architecture supporting document editing, notes, journals, and photo storage with raw DSLR support, live sync, markdown, code, LaTeX, to-dos, audio, tables, EPUB, PDF, and cross-platform access.
Estonia
EU
ghostwriter is a feature-rich text editor using Markdown syntax which makes it suitable for note-taking, document redaction, simple HTML website creation and much more.
GermanyEU
Cross-platform mind mapping and brainstorming tool offering multi-language support, real-time collaboration, visual templates, markdown and audio notes, cloud sync, device compatibility, file export, and regular feature updates for diverse productivity needs.
Singapore
Freeplane is a powerful and free software for building mind maps. It is a redesigned version of the well known FreeMind , and is created by one of FreeMind's key developers.
GermanyEU
Introducing Fossify Notes – your ultimate tool for effortless note-taking, organization, and planning. Simplify your life with this intuitive organizer designed to streamline your tasks and ideas effortlessly.
India
Plain text notepad with markdown support and todo list manager for Linux, Mac OS X and Windows, that works together with the notes application of ownCloud.
AustriaEU
On-premise office suite featuring advanced word processing, spreadsheets, and presentations, unmatched compatibility with 100+ formats, OOXML support, six-month updates, enterprise hardening, Visio and Publisher import, PDF export, and support for 50+ languages.
United Kingdom
Dynalist is a web app that lets you break down and organize your thoughts in the format of lists.
United States
DeepNotes is an open source, end-to-end encrypted visual note-taking app with deep page navigation and live collaboration. Create mind maps, diagrams, kanban boards, among others. Infinite nesting of infinite canvases.
United States
Free and open source, Java-based mind-mapping app for the desktop featuring a hierarchical editor that emphasizes folding.
GermanyEU
