When you start Neighbornote, your operations are automatically collected. NeighborNote will find related notes from your many scattered notes by using your past operations.
The list of notes which is related to the currently opened note is displayed on the right side of the main screen. The relativeness score is displayed at the lower-right corner. If you click the related note, you can access it immediately.
NeighborNote collects following operations, and calculates the relativeness among the notes as a weighted sum of the counts with the weights which have been set for each type of operations.
You can switch multiple notes just like tab browser feature of Firefox or Chrome. Therefore it became possible to open two or more notes at the same time. If you click "Open in New Tab" from the menu that appears when you right-click a note, you can open it in the new tab.
NeighborNote is open source software under GPL v2, so it is possible for anyone to use for free.
Operation history collected by NeighborNote is stored in a local database, and nothing sends to outside. You can stop the collection of user operation any time with just one click.