Persisting Vuex state ensures that application data survives browser refreshes and maintains user experience across sessions in Vue applications. With over 25 years of experience building complex applications and as the creator of CoreUI, I’ve implemented state persistence for numerous production Vue applications. The most effective approach is using Vuex plugins with localStorage or sessionStorage to automatically save and restore state data. This provides seamless data persistence with configurable storage options and proper error handling for different browser environments.