Crowdin - Localize your product in a seamless way
Weblate - Weblate is a free web-based translation management system.
POEditor - The translation and localization management platform that's easy to use *and* affordable!
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.
Phrase - A platform offering AI-powered translation tools for localization at scale.
BabelEdit - Edit your json, yaml, php, vue or properties translation files with ease.