Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
traduora - Translation management platform for teams
Mate Translate - Ultimate translation app for Mac, iOS, Chrome and many more
Tranzlate - Localization made easier.
Overspot - The best translation app for macOS.
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.