Nanonets OCR - Intelligent text extraction using OCR and deep learning
monkeylearn - Text Mining Made Easy. Extract and classify information from text. Integrate with your App within minutes.
OwlOCR - OwlOCR offers simple optical character recognition of text in PDF files, images or on-screen and converts that to plain text.
Google Cloud Natural Language API - Natural language API using Google machine learning
TextSniper - Instantly extract any text from your Mac's screen
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.