Obsidian - Sharpen your thinking

What it is

Obsidian is a free, flexible desktop application designed for personal knowledge management and note-taking. It serves as a private digital workspace where users can store, organize, and connect their thoughts. The app is aimed at individuals such as students, researchers, writers, and professionals who want to manage personal notes, journals, knowledge bases, and projects without relying on cloud-based services.

Main Features

Core Note-Linking

• Links: Create bidirectional connections between any notes to build a personal network of ideas, people, places, and references.
• Graph View: Visualize the relationships between notes through an interactive graph to discover hidden patterns and connections.

Customization & Extensibility

• Plugins: Access thousands of community-built plugins to extend functionality (e.g., Calendar, Kanban, Dataview).
• Themes: Customize the app's appearance with various themes to suit personal preferences.
• Open API: Developers can build their own plugins and integrations.

Workspace Tools

• Canvas: Use an infinite digital space to brainstorm, research, diagram, and lay out ideas visually.
• Markdown Support: Write and format notes using Markdown, ensuring simplicity and compatibility.

Data Ownership & Privacy

• Local Storage: Notes are stored privately on the user's device, enabling offline access and ensuring privacy.
• Open File Formats: Data is saved in open, non-proprietary formats (like Markdown files), preventing vendor lock-in and ensuring long-term accessibility.

How it works

Personal Knowledge Management

Users create notes in plain text Markdown files stored locally in a vault (a folder on their device). They can link notes together using double brackets [[ ]] to create a web of connected ideas, mimicking how the brain associates concepts.

Research and Brainstorming

Researchers and students use the Canvas feature to drag and drop notes, images, and other elements onto an infinite canvas to map out complex topics, philosophical arguments, or project plans visually.

Task and Project Management

Through community plugins, users can manage tasks with kanban boards, track to-dos across their entire vault, and use calendar integrations to organize daily notes and deadlines.

Key Points

• Privacy-First: All data is stored locally on the user's device; no one else can access the notes, not even the developers.
• Free to Use: The core application is free for personal use without any functional limits.
• Highly Customizable: The extensive plugin ecosystem allows users to tailor the app to fit nearly any workflow or thinking style.
• Future-Proof: The use of open, standard file formats (Markdown) ensures notes remain accessible and usable forever, independent of the app.

Additional Details

Pricing

• Core App: Free for personal use.
• Paid Services: Optional paid services include:
  • Sync: Securely sync notes across devices with end-to-end encryption ($8/month or $96/year per user).
  • Publish: Turn a vault into a public or private website ($16/month or $160/year per site).
  • Commercial License: Required for business use ($50/user/year).

Availability

• Platforms: Available for macOS, Windows, Linux, iOS, and Android.
• Download: The application can be downloaded directly from the official website.

Requirements

The app works with local Markdown files, so no specific cloud account or subscription is required to start using the core features.