The MarginNote Companion plugin bridges the gap between MarginNote 3 and Obsidian, allowing users to seamlessly import and manage their notes from MarginNote into Obsidian. The plugin supports importing highlights, notes, and even media like images and videos from MarginNote, and integrates them into Obsidian's markdown format. With customizable templates, users can specify how notes and hierarchies are inserted. The plugin also features automatic syncing of highlights, backlinks to MarginNote, and the ability to convert MarginNote links into Obsidian aliases for easy reference. Ideal for users who want to enhance their knowledge management workflows by combining the strengths of both platforms.