Idsidian

Obsidian is a note-taking application that functions as a second brain. It is built on top of a local folder of Markdown files, allowing users to create a personal knowledge base. The application emphasizes linking notes together, enabling the creation of a network of interconnected ideas. This linking feature is a core aspect of Obsidian's design, facilitating discovery and the surfacing of relationships between different pieces of information.

The software is cross-platform, available on Windows, macOS, and Linux, as well as mobile devices for iOS and Android. Obsidian uses Markdown as its primary file format, which is a lightweight markup language that is easy to read and write. This choice of format ensures that users' notes are future-proof and not locked into a proprietary system.

Key features of Obsidian include bi-directional linking, which creates a visual graph of note connections, and a powerful search function. It also supports extensibility through a plugin system, allowing users to add custom functionality. The application is free for personal use, with commercial licenses available for businesses. Obsidian aims to help users organize their thoughts, connect ideas, and build a knowledge management system that grows with them over time.