Synology Note Station - Without needing to spend money on Evernote, Synology Note Station provides a desktop client to organize all your random notes in one place.
Capture2text - Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
UpNote - A beautiful and clean cross-platform app for notes organizer
TextSniper - Instantly extract any text from your Mac's screen
Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.
dpScreenOCR - Program to recognize text on screen