Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
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.
EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.
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.
File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.