Tolgee
Tolgee develops an open-source tool for software localization (=translation to different languages)
Tolgee aims to save a lot of developers time spent on localization tasks and also it helps to provide context to translators so they can provide perfect translations.
Tolgee is the only tool you need to translate your web-based project to any language you wish.
Tolgee consists of a localization platform and SDKs you can integrate into your projects.