---
title: "Obsidian"
category: "Office, notes and writing"
tagline: "A notes app that keeps your notes as plain Markdown files, linked together."
source: "Flathub"
package: "md.obsidian.Obsidian"
website: "https://obsidian.md/"
---

## What it is

Obsidian is a note-taking app built on plain Markdown files in a folder on your computer, which it calls a vault. You link notes to each other with `[[double brackets]]`, and Obsidian shows backlinks and a graph of how your notes connect. A large library of community plugins and themes extends it. The app is free for personal use and closed source; your notes stay ordinary files you can open with anything.

## Why it's here

- **Your notes are just files.** A vault is a folder of Markdown, so it works with Git, backups and any other editor.
- **Linked thinking.** Links and backlinks turn a pile of notes into a personal wiki.
- **Extensible.** Plugins add tasks, calendars, diagrams and more.

## On CoreDesktop

CoreDesktop installs Obsidian as a Flatpak from Flathub. Open it from the app grid and create a vault or open an existing folder. `update` keeps it current along with your other Flatpaks.