LocalStorage API vs Session Storage

Developers should use the LocalStorage API for client-side storage of non-sensitive data like user preferences, application state, or cached content to improve performance and user experience meets developers should use session storage when they need to store temporary, session-specific data such as form inputs, shopping cart items, or user preferences that should not persist beyond the current browsing session. Here's our take.

LocalStorage API

Nice Pick

Developers should use the LocalStorage API for client-side storage of non-sensitive data like user preferences, application state, or cached content to improve performance and user experience

Pros

• It is ideal for simple key-value storage needs in web apps, such as remembering theme settings, form data, or shopping cart items, without requiring server-side persistence
• Related to: javascript, web-storage-api

Cons

• Specific tradeoffs depend on your use case

Session Storage

Developers should use Session Storage when they need to store temporary, session-specific data such as form inputs, shopping cart items, or user preferences that should not persist beyond the current browsing session

Pros

• It is particularly useful for single-page applications (SPAs) to maintain state during navigation without server requests, and for security-sensitive data that should be cleared when the session ends to prevent unauthorized access from other users on shared devices
• Related to: local-storage, cookies

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. LocalStorage API is a tool while Session Storage is a concept. We picked LocalStorage API based on overall popularity, but your choice depends on what you're building.

The Bottom Line

LocalStorage API wins

Based on overall popularity. LocalStorage API is more widely used, but Session Storage excels in its own space.

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