OneNote
Evernote
Google Keep
Simplenote
Notion
Standard Notes
Joplin
Workflowy
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
OneNote
kdiff3For me it is a convenient and compact tool in which I can put all my ideas, goals, thoughts
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.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Simplenote - The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.