Apps similar to TreeTime include Obsidian, which has a free version. Other options are Joplin, ONLYOFFICE, Logseq and Anytype. There's no shortage of Note-taking Tools like TreeTime, with more than 100 alternatives for Windows, Mac, Linux, the web and Android.
TheBrain helps you organize all your Web pages, contacts, documents, emails and files in a context-driven visual map.
United States
Calligra Suite is an office and graphic art suite by KDE. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
Germany
EU
RedNotebook is a graphical diary and journal helping you keep track of notes and thoughts. It includes a calendar navigation, customizable templates, export functionality and word clouds. You can also format, tag and search your entries.
GermanyEU
Secure device-synced notepad using AES-GCM-256 encryption to protect confidential data. Features include a tree-structure for note organization, historical changes tracking, and collaboration options. Supports all major platforms with cloud sync and offline access.
Switzerland
Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
FranceEU
Visual brainstorming tool for quickly capturing and organizing your thoughts and ideas on desktop and mobile.
GermanyEU
Organizes documents, notes, emails, PDFs, and media using AI-powered search, tagging, and OCR. Supports offline use, syncing across macOS and iOS, encryption, web clipping, automation, and customizable grouping for efficient information management.
GermanyEU
Seamlessly integrates words, data, and team collaboration, eliminating the need to switch applications. Features include customizable views, real-time collaboration, full-text search, and calendar integration, empowering teams to scale and coordinate tasks efficiently with a WYSIWYG editor.
United States
MindMeister is the market-leader in online mind mapping. Unlike traditional mind mapping tools, MindMeister allows for real-time brainstorming sessions between an unlimited number of users and requires only a standard web browser.
GermanyEU
Ultra-ergonomic note app for Windows designed for efficient text capture from any application, file and image attachments, cross-device synchronization, hierarchic tagging, full-text search, encryption of notebooks, automatic backups, and offline use for enhanced safety.
Russia
Block-organized, privacy-focused scratchpad for developers with language-specific syntax highlighting and auto-formatting, supporting JavaScript, JSON, Markdown, notes, API responses, and daily planning, all in a persistent local buffer with minimalist interface.
SwedenEU
Web-based tool for integrating text, images, audio, and video with syncing across devices, real-time collaboration, handwriting input, AI-powered summaries, checklists, scanning, reminders, search in handwritten notes, and advanced organization.
India
