midPWA
What is IndexedDB in PWAs?
Updated May 17, 2026
Short answer
IndexedDB is a browser database for structured data storage.
Deep explanation
It allows storing large amounts of structured data asynchronously inside the browser.
Real-world example
Offline form data storage.
Common mistakes
- Using localStorage for large datasets.
Follow-up questions
- Is IndexedDB synchronous?
- What data types supported?