Obsidian review

What Obsidian is

Obsidian is a notes app made by a small, independent, user-funded company (it takes no venture capital). You point it at a folder, called a vault, and every note is a Markdown text file in that folder. The app adds a fast editor, links between notes, backlinks, search, a graph of how notes connect, and a plugin system on top of those files.

Because your notes are just files, you can open them with any text editor, back them up however you like and keep them if Obsidian ever disappears. That "file over app" idea is the main reason people choose it over cloud tools.

Key features

• Local Markdown files. No proprietary database; your vault is a normal folder.
• Links and backlinks. Type double square brackets to link notes; each note shows what links to it, which makes it good for research and "second brain" systems.
• Graph view showing the connections between notes.
• Canvas, an infinite board for laying out notes, images and web pages visually, saved in the open JSON Canvas format.
• Bases, a core plugin that turns notes and their properties into database-like table and card views.
• Properties (front matter) for dates, tags and other fields on each note.
• Core plugins such as daily notes, templates, outline, slides, audio recorder and page preview.
• Community plugins and themes. Thousands of free add-ons, from task managers and calendars to Git backup and AI assistants.
• Web Clipper browser extension to save pages into your vault as Markdown.
• Optional paid Sync and Publish services.

Obsidian pricing (as of October 2026)

From Obsidian's pricing page and Sync page, in US dollars.

Sync is priced per user and offers refunds within 7 days.

Strengths

• You own your notes. Plain Markdown files that work with any editor, today and in twenty years.
• Private and offline by default. Nothing leaves your device unless you choose a service or plugin that sends it.
• Free with no limits, including commercial use.
• Fast, even with large vaults, because it works on local files.
• Extensible. The plugin ecosystem is one of the largest of any notes app, so it can become a task manager, a reading log or a writing studio.
• Every platform, including Linux.
• Sync is end-to-end encrypted and reasonably priced.

Weaknesses

• Learning curve. Markdown, links, properties and plugins are a lot to take in, and a frequent complaint is spending more time tweaking than writing.
• Weak collaboration. Shared vaults through Sync exist, but there is nothing like Notion's live co-editing, comments and permissions.
• Plugins vary in quality. Community plugins are made by volunteers; some are abandoned, and each one can read your vault, so install with care.
• Sync costs extra if you want a reliable phone-and-computer setup without fiddling with iCloud or Git.
• No built-in AI. You need a plugin and usually your own API key.
• Mobile is good but secondary; editing on a phone is more cumbersome than on desktop.

What people use Obsidian for

The most common uses, judging by Obsidian's community forum and plugin directory, are personal knowledge management (linking ideas from reading and research), daily journaling, writing projects such as articles and books, study notes, and work logs that collect meeting notes, decisions and to-dos in one place. Developers often keep technical notes and snippets in it because Markdown and code blocks feel natural. Because every note is a file, Obsidian also works alongside other tools: you can point scripts at the vault, or open the same files in a code editor.

Privacy and security

The core app needs no account and stores everything locally. Obsidian Sync encrypts your vault end to end with AES-256 before it leaves your device, so Obsidian says it cannot read it. Publish, by design, makes the notes you choose public. The main privacy risk is community plugins, which run with full access to your vault; Obsidian shows a warning and lets you keep "restricted mode" on until you decide to trust plugins.

Platforms

• Desktop: Windows, macOS and Linux.
• Mobile: iPhone, iPad and Android.
• Sync also runs headless on a server.
• Browser: the Web Clipper extension. There is no web app for editing your vault.

Who should use Obsidian

Obsidian suits writers, researchers, students, developers and anyone building a long-term personal knowledge base. It is a good home for meeting notes and journals you want to keep private, and for people who distrust storing their thinking in someone else's cloud.

It is a poor fit for teams that need a shared wiki with permissions, or for people who want a polished, opinionated tool without setup. Those readers should look at Notion, or at a simple task app like Todoist if what they really need is a to-do list.

Obsidian Sync or a free sync method?

Since your vault is a folder, you can sync it with anything that syncs folders. The common choices:

• Obsidian Sync ($4 a month billed yearly for Standard): end-to-end encrypted, works the same on every platform including iPhone and Android, keeps version history and supports shared vaults. It is the low-effort option and also funds development.
• iCloud Drive: free and works well if all your devices are Apple; Windows and Android support is weaker.
• Dropbox, Google Drive or OneDrive: fine on desktops, but mobile access usually needs a community plugin or extra app.
• Git: popular with developers for full history, via a community plugin; more setup, and awkward on phones.

Whatever you choose, avoid running two sync services on the same vault at once, which is a common cause of duplicate or conflicting files reported by users.

Getting started well

• Begin with core features (links, daily notes, templates, properties) for a few weeks before adding community plugins.
• Keep a simple folder structure and lean on links and search rather than deep folders.
• Back up the vault like any important folder; Sync's version history is not a full backup strategy on its own.
• Review a plugin before installing: check when it was last updated and how many people use it.

Alternatives

• Notion: cloud workspace with databases and collaboration. Compare in Notion vs Obsidian.
• Notion AI, if built-in AI over your notes is the main draw.
• Todoist, for tasks rather than notes.
• Logseq (outliner, local files) and Apple Notes (simple and built in) are other popular options.