Express.js is the most popular NodeJS framework. This app allows you to learn it completely offline. You can also activate other frameworks and features from within the app. This app is a multi-language app. It supports the following languages as local language within the app: 1. English 2. German 3. French 4. Spanish 5. Portuguese 6. Italian 7. Japanese 8. Korean 9. Chinese 10. Hindi 11. Arabic 12. Indonesian 13. Turkish 14. Vietnamese 15. Russian 16. Polish 17. Dutch 18. Ukrainian 19. Romani