Apps similar to Trilium Notes include Obsidian, which has a free version. Other options are Joplin, Logseq, Anytype and Notion. Note-taking Tools like Trilium Notes are a crowded field, with more than 100 alternatives for Windows, Mac, Linux, the web and Android.
Open-source, privacy-focused workspace combining note-taking, project and task management, Kanban board, interactive whiteboard, Pomodoro timer, Markdown support, offline access, real-time team collaboration with @mentions, goal tracking, subtasks, and customizable features.
Singapore
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.
TiddlyWiki is a single html file with all the characteristics of a wiki - including all of the functionality (including editing, saving, tagging and searching) and the style sheet. Because its a single file, its very portable - you can email it, put it on a web server or share...
United Kingdom
Your personal note-taking haven for privacy and efficiency.
Italy
EU
HelixNotes is a local markdown note-taking app built with Rust, Tauri 2.0, and SvelteKit. Your notes are standard .md files on your filesystem - sync with whatever you want or nothing at all.
Open-source wiki and documentation solution offering real-time collaborative editing, robust permissions, group management, spaces for organizing content, inline commenting, full-page history, advanced full-text search, nested pages, attachments, and flexible storage.
United States
Workspace with end-to-end encryption, zero-knowledge security, rich notes, private journal, encrypted file storage, password management, cross-platform browser access, open-source cryptography, optional Pro features, and no recurring subscription fees.
United States
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.
EstoniaEU
SiYuan is a desktop Markdown Block-Reference and Bidirectional-Link note-taking application. Support fine-grained block-level reference and Markdown WYSIWYG.
China
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
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
Lightweight, self-hosted app for managing personal checklists and notes with drag and drop, progress bars, Kanban boards, Markdown WYSIWYG editor, file-based data, user management, sharing options, themes, open source, and API access.
