Cost / License
- Free
- Open Source (MIT)
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
- Flathub




Standard Notes is described as 'An end-to-end encrypted note-taking by Proton. Offline access, unlimited sync across devices, tagging, passcode and biometric security, plus advanced premium privacy features' and is a leading Note-taking tool in the security & privacy category. There are more than 100 alternatives to Standard Notes for a variety of platforms, including Mac, Web-based, Windows, Android and Linux apps. The best Standard Notes alternative is Obsidian, which is free. Other great apps like Standard Notes are Joplin, Logseq, Anytype and Notion.




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.




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.




Workspace fusing browsing, file management, and AI with local-first data; offers note-taking, applet creation, offline media storage, YouTube and PDF interaction, customizable AI-powered notes, citation tools, split views, sidebar navigation, and privacy features.




Whether it's bookmarks or passwords, files or shopping lists...Turtl organizes it all and makes it easy to find later. Sync across your devices. Leave nothing behind.




The last update is from 2019.


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.




Open-source note-taking tool offering AI-enhanced retrieval with RAG technology, secure self-hosted data storage, Markdown support, and transparent community collaboration on GitHub for efficient, private, and effortless note management.


Clean, native Markdown editor for macOS with syntax highlighting, real-time GitHub Flavored Markdown and Mermaid diagram preview, KaTeX math support, synchronized side-by-side editing, QuickLook integration, PDF export, format shortcuts, and no subscriptions.

Offline in-device task manager and note app featuring smart creation, advanced organization, calendar and list views, Markdown notes, secure SHA-256 encryption, Material You theming, multiple color themes, no tracking or ads, and import/export for total ownership.




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.




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.




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.




Encrypted in-motion and at-rest.