BabelEdit - Edit your json, yaml, php, vue or properties translation files with ease.
Translate Toolkit - The Translate Toolkit is a localization and translation toolkit.
Poedit - Poedit translations editor. The best way to translate apps and sites.
Applanga - Applanga is a flexible & easy to use cloud-based localization platform that automates the translation process for iOS, Android, OSX, Unity and web apps.
POEditor - The translation and localization management platform that's easy to use *and* affordable!
Weblate - Weblate is a free web-based translation management system.