Aligner - Publish multilingual content with your team
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Transifex - Transifex makes it easy to collect, translate and deliver digital content, web and mobile apps in multiple languages. Localization for agile teams.
LanguageBot - Real time language translations for Slack teams
POEditor - The translation and localization management platform that's easy to use *and* affordable!