Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Mate Translate - Ultimate translation app for Mac, iOS, Chrome and many more
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
Crowdin - Localize your product in a seamless way
DeepL Translator - DeepL Translator is a machine translator that currently supports 42 language combinations.
Crow Translate - A simple and lightweight translator that allows to translate and speak text using Google, Yandex and Bing.