Obsidian is a knowledge management tool that connects your notes together, creating a second brain.
Obsidian notes are plain text files stored locally on your computer, giving you full control over your data.
Key features of Obsidian include linked notes, local storage, Markdown support, customization, and free core features.
To get started with Obsidian, download and install the app, create a vault, make your first note, and learn to link notes using double square brackets.