localStorage

浏览器localStorage的容量约为5-10MB

localStorage can only store string types; complex data must be serialized via JSON.stringify before storage and deserialized with JSON.parse when read.

localStorage is a client-side storage mechanism defined by the HTML5 specification that persists data in the browser as key-value pairs, with a capacity typically of 5–10 MB, and data is not lost when the page is refreshed or the browser is closed.

InvoiceSnap AI's frontend uses vanilla JavaScript for upload, table interaction, browser storage, and CSV export, with expense records stored in the browser's localStorage.

DishReactions uses browser localStorage to store all data, so feedback never leaves the device.

Common ways to achieve data persistence include browser-side localStorage or IndexedDB, as well as cloud sync and multi-device access via a backend or BaaS (such as Firebase, Supabase).

After the Service Worker caches static resources, the app can be used fully offline, but the core data of the bookkeeping app is in localStorage, the Service Worker does not cache the data itself, and because there is no server, transactions entered offline will not automatically sync after the network is restored.

localStorage stores strings as key-value pairs, with capacity typically around 5MB, and its API is synchronous and simple; IndexedDB is an asynchronous transactional object database whose capacity is constrained by the disk quota, and it can store binary data and supports index and cursor queries.

Data in localStorage and IndexedDB is bound to a specific domain and browser instance, and clearing browser data or changing browsers or devices will make the data inaccessible; they do not participate in the Service Worker caching mechanism and cannot automatically sync to the server.

This zero-dependency PWA bookkeeping app is built with pure HTML, CSS, and native JavaScript, requires no registration, and stores all data locally in the browser (localStorage or IndexedDB); changing devices or clearing browser data will cause the records to be lost.

DukaanAI's inventory data is initially stored in the browser's localStorage, and once multi-device sync or multi-person collaboration is needed, it must be migrated to a cloud database.

DukaanAI's initial version stores inventory data in the browser's localStorage, making it a local-first prototype rather than a cloud-based multi-user system.

localStorage is a key-value local storage mechanism provided by browsers, with data kept on the user's device, a capacity typically around 5MB, and data inaccessible after switching devices or browsers.

Data in localStorage has no expiration mechanism and is not cleared when the session ends; storing sensitive data in localStorage means it persists long-term on the user's device.

If the refresh token is placed in localStorage, an XSS occurrence is equivalent to account compromise.

Browser local storage is typically implemented using localStorage or IndexedDB technology, with data stored on the user's own machine without being transmitted through a server.

Tokens stored in localStorage can persist after a tab is closed, but are exposed to XSS risks

Local data storage for Chrome extensions typically relies on the browser's built-in IndexedDB or localStorage mechanism, with data saved in the user's local browser sandbox directory.

A token is the core carrier of login authentication; after a successful login, the back end generates a random string and returns it to the front end, which saves it in localStorage and includes the token with every request for back-end verification.

Pure front-end single-page tools rely solely on browser-side HTML, CSS, and JavaScript, requiring no backend server, database, or network requests, with data persisted via browser-native APIs such as localStorage.