sessionStorage
sessionStorage is scoped to the current browser tab session. Opening the same URL in a new tab creates a separate, empty sessionStorage.
JavaScript
Beginner
3 min read
sessionStorage Basics
Example
// Useful for single-session data
sessionStorage.setItem("formStep", "2");
sessionStorage.setItem("cartId", "abc-123");
// Data is lost when the tab is closed
// Each tab has its own isolated sessionStorage
// Good use cases:
// - Multi-step form progress
// - Temporary filters
// - Tab-specific state
// - Cart before login Pro Tip
Use sessionStorage for single-visit state that should reset on a new visit, like multi-step wizard progress.
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