Sembast is a lightweight, embedded NoSQL database for Dart and Flutter applications, designed for persistent, file-based storage with support for encryption. It enables efficient document-oriented data management across multiple platforms including Android, iOS, Web, macOS, Windows, and Linux. Ideal for offline-first apps, it offers simple APIs for storing and querying data without requiring a server. Sembast supports transactions, indexing, and secure data handling through built-in encryption, making it suitable for sensitive information. Its minimal footprint and ease of integration make it a strong choice for local data persistence in Flutter projects.
Use cases
- Offline-first mobile applications
- Local data storage for web and desktop apps
- Secure local data with encryption
- Simple document-based data management
- App state persistence
- Caching of remote data
Key features
- Embedded file-based database
- Support for encryption
- Cross-platform compatibility
- Document-oriented storage
- Indexing and querying
- Transaction support
Suitable for
- Flutter developers needing local persistence
- Apps requiring secure offline data
- Projects avoiding external databases
- Developers preferring simplicity over complexity
- Applications with moderate data volume
Considerations
- Not suitable for large-scale or high-concurrency scenarios
- Limited to file-based storage
- No built-in synchronization with remote databases
- Requires manual handling of schema evolution
- Best suited for single-device use cases
