FrontendBeginner
Local Storage
PronunciationLOH-kul STOR-ij
Definition
Local Storage is a web API that allows websites to store data as key-value pairs directly in the user's browser. Unlike cookies, the stored data has no expiration date and persists even after the browser is closed.
Where you hear it
Used during frontend development when discussing client-side data persistence, user preferences, or saving application state.
Examples
Use Local Storage to save the user's preferred theme setting.
We save the shopping cart items in Local Storage so they remain after a page refresh.
Common mistake
Storing sensitive information like passwords or personal tokens in Local Storage, as it is accessible by any script running on the page and is not secure for private data.