OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
CherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
RightNote - Advanced notes and information manager for Windows
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Standard Notes - A safe place for your notes, thoughts, and life's work