Obsidian
In-depth entryby Dynalist Inc. (Obsidian) · Application · also known as Obsidian.md
Local-first Markdown note-taking app with bidirectional links, graph view and a large community plugin ecosystem; optional paid Sync and Publish
Overview
Obsidian is a desktop and mobile note-taking application in the personal knowledge-management category, developed by the small team behind Dynalist. Notes are plain Markdown files in a folder on the user's device (a vault), so they remain readable by any editor and under the user's control. On top of the files Obsidian adds wikilinks and backlinks, a graph view of connections, tags and properties (YAML front matter), embedded notes and media, canvas boards, a daily-notes workflow and full-text search.
The application is proprietary but free for personal and commercial use under its licence, with optional paid add-ons: Obsidian Sync for end-to-end encrypted synchronisation between devices and Obsidian Publish for hosting a vault as a website. Optional Catalyst and Commercial licences support development. The community plugin directory contains thousands of extensions, including Dataview for querying note metadata, Templater, Excalidraw drawings, Zotero citation integration and Git-based backup, and themes and CSS snippets customise the interface.
Researchers and developers use it as a literature notebook, lab journal or project wiki that lives next to code and LaTeX sources in a Git repository; the Markdown files can be processed by Pandoc, Quarto or static-site generators. Limits include the absence of real-time multi-user editing, mobile apps that depend on a sync mechanism, plugin quality and security that vary because plugins run with full access, and a closed codebase, so the openness lies in the file format rather than the application.
Capabilities
- Markdown vault stored as local files
- Wikilinks, backlinks and graph view
- Properties, tags and full-text search
- Canvas boards and embedded notes
- Community plugins and themes
- End-to-end encrypted Sync and web Publish add-ons
- Command palette and keyboard-driven navigation
Typical workflows
- Keep a literature notebook linked to Zotero references
- Version a vault with Git alongside a research project
- Query note metadata with the Dataview plugin
Strengths
- Plain-text files under user control
- Works fully offline
- Very large plugin ecosystem
- Free for personal and commercial use
Limitations
- No real-time collaborative editing
- Closed-source application
- Plugins run with full access and vary in quality
- Device sync requires Obsidian Sync or a third-party mechanism
Prerequisites
- macOS, Windows, Linux, iOS or Android device
Who it is for
- Researchers and students building knowledge bases
- Developers keeping Markdown notes with code
- Writers organising long projects
Alternatives & comparison
Logseq is an open-source, outliner-first alternative that also stores Markdown locally. Notion is cloud-hosted with databases and collaboration but no local files. Bear and Craft are polished Apple-centric editors with their own storage; Apple Notes is free and built in but lacks linking depth and plugins.
- Apple Notes
Apple's built-in notes app for Mac, iPhone, iPad and iCloud.com with folders, tags, attachments, handwriting, shared notes and on-device search
ProprietaryFree - Bear
Markdown note-taking app for Mac, iPhone and iPad from Shiny Frog with nested tags, note links and iCloud sync, free with a Pro subscription
ProprietaryFreemium - Craft
Block-based document and notes app with native Apple, Windows and web clients, structured pages, collections and shareable published documents
ProprietaryFreemium - Logseq
Open-source, outliner-based knowledge base storing notes as local Markdown or Org-mode files with block references, queries and a graph view
Open sourceOpen source - Notion
Hosted workspace combining block-based documents, relational databases, wikis and project views, with an API and built-in AI features
ProprietaryFreemium
Sources & verification
Primary sources consulted for this record. Claims are tied to the fields each source supports; the automated link checker re-verifies every URL on a schedule.
- LicenseObsidian license overviewchecked Nov 1, 2026
https://obsidian.md/license
Supports: pricing_model, source_model, advantages
Free for personal and commercial use; optional Commercial and Catalyst licences
- Official documentationchecked Nov 1, 2026
- Official sitechecked Nov 1, 2026
- Pricing pagechecked Nov 1, 2026
- Confidence
- High
- Reviewed
- Nov 1, 2026
- Links
- Broken · Nov 2, 2026