How Obsidian fits into everyday note-taking
Obsidian lets you write notes in Markdown, connect related ideas, and revisit those connections as your collection grows. Instead of storing notes in a proprietary database, it keeps each one as a .md file inside a folder called a vault. That makes everyday writing and organization part of a file-based workflow: notes remain on your computer and can be opened with any text editor that supports Markdown.
In ExeDepot’s page on Obsidian, the app is described as a way to turn those files into a linked personal knowledge base. Add [[links]] between notes, use backlinks to find pages that refer to the one you are reading, or open the interactive graph to see how ideas relate. For planning or visual thinking, Canvas provides an infinite board where notes can be arranged side by side, making it possible to lay out a topic without changing the underlying files.
Plugins and themes let users adapt the workspace to particular habits. The community ecosystem includes thousands of options, including tools for tasks and calendars, as well as support for additional file types. These additions can extend a vault’s workflow while the notes themselves remain ordinary Markdown files.
Where the boundaries are
Obsidian is proprietary freeware, not open-source software. Its file format gives users direct access to their notes, but that does not make the application’s code open. This distinction matters for people who require open-source tools: the content is portable, while the program itself remains closed source.
The app does not include free built-in synchronization between devices. Obsidian Sync is an optional paid add-on that keeps vaults in step using end-to-end encryption and includes version history; it costs $4 per month. Users who do not choose Sync can place the vault folder in a cloud drive or Git repository they already use, though that is separate from Obsidian’s paid synchronization service. Obsidian Publish is another optional subscription, priced at $8 per site per month.
According to Obsidian’s pricing information, the app does not collect telemetry. Notes stay in the local vault unless a user uses Sync or Publish. As a result, the local-file approach offers control over where notes are kept, while multi-device syncing and publishing are separate services rather than included features.
Use, licensing, and setup
Since February 2025, Obsidian has been free for all purposes, including commercial use in companies, and does not require an account. The optional Commercial license costs $50 per user per year and supports development; it is not required for work use. The optional Catalyst license is a one-time $25 payment that supports development and adds early access to beta versions.
Obsidian is available for Windows 10, Windows 11, macOS, Linux, Android, and iOS. On Windows, install the app and create a new vault or open an existing folder of Markdown files. Because a vault is an ordinary folder, users can begin with existing notes rather than having to convert them into a special database.
For writers, students, and researchers, the central practical choice is whether a linked local-file workflow suits the way they organize information. Obsidian combines editable Markdown notes, backlinks, graph exploration, and a visual Canvas, but users who need open-source software or free built-in device synchronization should account for those limits before adopting it.