TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
Lingvanex Translator for Slack - Auto-translate messages, documents and images in Slack
Yandex.Images - search for images on the internet, search by image
Inspector Spacetime from Google - Google Translate for engineers working with motion