Obsidian is a note-taking and writing app that stores Markdown files locally, helping users connect ideas, organize research, and build a personal knowledge base that remains accessible offline.
Obsidian is a writing and knowledge management app that turns locally stored notes into a connected reference collection. Writers, students, researchers, and project planners can capture information, develop ideas, and revisit the reasoning behind earlier work. Notes live in a vault, which is a folder containing Markdown files and supporting attachments. You can organize material by topic, link related concepts, and gradually build a personal knowledge base without deciding on a rigid structure first. The app supports both brief working notes and longer drafts, making it useful for carrying information from initial collection through reflection, planning, and more developed written output.
Obsidian works with ordinary files, so you can edit your notes in another text editor and see those changes reflected in the vault. While researching in Brave, you can collect source addresses and observations, then organize that material alongside your existing project notes. The supplied executable installs the Windows edition; separate applications are available for other supported desktop and mobile systems. Synchronizing devices requires an additional setup, using the optional paid service or a compatible alternative. Attachments and extensions can increase storage use and affect responsiveness. Keeping a separate backup remains useful because synchronized deletions can propagate between devices.
Obsidian helps you reuse the thinking you have already done instead of repeatedly reconstructing it from scattered documents. A project note can retain the sources, decisions, and related ideas that explain how you reached a conclusion, making later revisions easier to approach. This is especially useful for ongoing research or writing, where material gathered for one assignment may become relevant months later. You can begin with a small collection and refine its organization as patterns emerge, reducing the pressure to design a complete filing system before taking useful notes. Keeping your own files also gives you practical choices about backups, storage locations, and future editing tools. The free core app lets you establish that workflow before deciding whether hosted synchronization or publishing is worth paying for. With consistent naming and selective linking, the collection can become a working reference that supports new work rather than an archive you rarely revisit.
Key capabilities and highlights.
Internal links connect related notes, while backlinks show which other notes refer to the page you are reading. Unlinked mentions can reveal references that have not yet become explicit connections. Together, these tools help you follow a topic through different projects and preserve context without duplicating entire passages.
Canvas arranges notes, text cards, attachments, and web pages on a two-dimensional workspace. You can group items and connect them with labeled lines to map an argument or plan a project. Its open JSON Canvas format stores the layout separately, making spatial organization available alongside conventional written notes.
The graph displays notes and the links between them, with filters and grouping controls for narrowing the view. A local graph focuses on connections around an individual note. These views can help you inspect clusters or disconnected material, although the meaning of each relationship still depends on your own links.
Bases creates database-style views over notes and their properties, allowing you to filter, sort, and edit structured information. A reading list or project inventory can draw from the same files used for detailed writing. Obsidian keeps the underlying information in local Markdown files rather than requiring a separate hosted database.
The Templates core plugin inserts predefined text into the active note, including variables for items such as the date or note title. This supports repeatable structures for meeting records, reading notes, and project reviews. You can maintain the template files yourself and change the structure as your workflow develops.
Search finds material across a vault and supports operators that narrow results by elements such as file paths, tags, or content. Combining conditions helps locate a specific passage inside a large collection. This provides a retrieval method when you remember a phrase or category but not the note's filename.
Community plugins add specialized workflows beyond the core application, while themes change its presentation. Obsidian lets you choose which extensions to enable for a vault. Plugins can access files and network resources, so their source and behavior deserve review before installation, particularly when your notes contain sensitive project information.
The optional paid Sync service transfers notes between devices with end-to-end encryption and provides version history. Selective synchronization controls which supported files and settings move between installations. This reduces manual copying for people who write on multiple devices, while keeping the core note-taking workflow usable without a subscription.
Browse historical releases and previous builds.
Common questions about Obsidian.
Yes. The core app is free for personal, commercial, and nonprofit use. A Commercial license is optional support for development, while Sync and Publish are separate paid services.
Yes. Local note-taking does not require an account or an internet connection. An account is needed for paid add-on services and payments; online content and synchronization still require connectivity.
No. The application is proprietary, even though it stores notes in an open text format. Public repositories for releases, documentation, or extensions do not make the main application open source.
Local Markdown notes are ordinary text files and are not automatically encrypted by the app. Use operating-system protections or disk encryption when needed. End-to-end encryption in the optional Sync service protects synchronized data and does not encrypt your local vault files.
Yes. Markdown notes can be opened and edited with compatible text editors. Application-specific links, embedded content, Canvas layouts, and plugin features may require adjustment or suitable support in the destination application.
Obsidian is a note-taking and writing app that stores Markdown files locally, helping users connect ideas, organize research, and build a personal knowledge base that remains accessible offline.
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