Knap — Search the notes you already have

Field notes

Knap works directly against a folder chosen by the user rather than importing notes into a separate library or database. The page describes a 7,124-note test vault indexed in 310 milliseconds, with searches completing in about 2 milliseconds. It also documents keyboard-driven navigation, Markdown-aware editing, optional vim modes, backlinks, nested tags, and task-list updates written back to the source files. The stated platform requirement is macOS 15 or later.