Obsidian

Obsidian offers a free version for personal use with core note-taking and knowledge management features. Some advanced services, such as commercial licenses, sync, and publishing, may require paid plans. Check the official website for the latest pricing details.

Your notes are stored as plain-text Markdown files on your local device in folders you control. You can choose whether to use any sync service and can back up or move your vaults like regular files, ensuring full data ownership.

Yes. Obsidian is an offline-first app, so you can access and edit your notes without an internet connection. To use Obsidian on multiple devices, you can enable Obsidian Sync or rely on third-party sync solutions like cloud storage, depending on your workflow and security needs.

Obsidian itself focuses on local knowledge management, but you can extend it with community plugins and integrations that add AI features such as summarization, content generation, smart search, and note recommendations. Availability and pricing of AI features depend on the specific plugin or service.

Yes. Because Obsidian uses standard Markdown files, you can usually export notes from other tools (such as Evernote, Notion, or OneNote) and convert them to Markdown. Many community plugins and external converters exist to help streamline the migration process.