RedNotebook - RedNotebook is a software that format, tag and search entries and add pictures, links and customizable templates, spell check notes, and export to plain text, HTML, Latex or PDF.
MemPad - MemPad is a plain text outliner and note taking program with a structured index.
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Lifeograph - Lifeograph is an off-line and private journal and note taking application.
Daylio - Daylio enables you to keep a private diary without having to type a single line.
CintaNotes - CintaNotes is a note taking application for Windows.