Sembast_web is a NoSQL persistent embedded database designed for web applications, built on top of IndexedDB. It provides a lightweight, efficient solution for storing and retrieving structured data in the browser without requiring a server. Ideal for offline-first apps, it supports complex queries, transactions, and indexing, ensuring fast access to data even when network connectivity is limited. The package integrates seamlessly with Flutter, enabling developers to use the same API across web, mobile, and desktop platforms.
Use cases
- Offline-first web applications
- Client-side data storage in web apps
- Cross-platform data persistence
- Real-time data synchronization
- Storing user preferences and settings
Key features
- IndexedDB-backed storage
- Support for complex queries and indexes
- Transactional operations
- Cross-platform compatibility
- Lightweight and fast performance
Suitable for
- Web developers using Flutter
- Apps needing local data persistence
- Developers building offline-capable tools
- Projects requiring simple yet powerful data storage
- Teams targeting multiple platforms with shared code
Considerations
- Limited to web platform (not mobile native)
- Depends on IndexedDB availability
- May require polyfills for older browsers
- Not suitable for large-scale server-side data management
- Performance depends on device storage capacity
