Effective communication across languages and cultures is crucial for modern software applications, particularly when it comes to notifications, which guide users through essential workflows and can significantly impact business outcomes. This necessity spans various application types, from global marketplaces to project management and financial platforms. To achieve seamless communication, it is essential to implement robust translation and localization processes, which involve internationalization (i18n) and localization (l10n). This ensures content is both understandable and culturally relevant to users worldwide. Various JavaScript libraries such as i18next, React Intl, Polyglot.js, LinguiJS, and jQuery.i18n provide tools for developers to manage translations, pluralization, and locale-specific content. These libraries differ in their integration, ease of use, and community support, making it important for developers to choose based on project needs. Knock offers a platform for translation management that allows non-developers to participate in the localization process, supporting large-scale translation tasks by integrating with CI/CD pipelines and ensuring that global marketplaces can efficiently serve multilingual users.