localStorage/sessionStorage Helper Tool
localStorage/sessionStorage Helper
Manage browser storage: set, get, remove keys and view all stored data.
| Key | Value | Size | Action |
|---|
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Start Free TrialHow to Use the localStorage/sessionStorage Helper Tool
Select your storage type using the toggle, enter a key and value, then use the Set Item button to store data. Use Get Item to retrieve values, Remove Item to delete specific keys, or Clear All to empty the storage.
Understanding Browser Storage
localStorage persists data until explicitly cleared, while sessionStorage only lasts for the browser session. Both have size limits (typically 5-10MB) and store data as strings.
Developer Use Cases
This tool is perfect for:
- Testing browser storage functionality during development
- Debugging storage-related issues in web applications
- Managing user preferences and application state
- Storing temporary data for offline functionality
- Caching API responses to improve performance
JSON Support and Data Types
The tool automatically handles JSON serialization and parsing, making it easy to store and retrieve complex objects. Always validate your JSON before storing to avoid parsing errors.
Frequently Asked Questions
Q. What's the difference between localStorage and sessionStorage?
localStorage persists until manually cleared, while sessionStorage is cleared when the browser tab is closed.
Q. Is there a storage size limit?
Yes, typically 5-10MB per origin, depending on the browser. The tool will show errors if you exceed the limit.
Q. Can I store objects and arrays?
Yes! The tool automatically handles JSON serialization/deserialization for complex data types.
Q. Is this data secure?
Browser storage is accessible to any script on the same domain. Never store sensitive information like passwords or tokens.
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