Hive review
A focused open-source choice for encrypted, offline Flutter persistence.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Hive is an open-source local key-value database library for Dart and Flutter applications. It is designed for developers who need embedded persistence inside mobile, desktop, or web apps rather than a hosted database. Data is organized into boxes, with support for primitive values and custom objects through type adapters. Native platforms use files, while browser storage is provided through IndexedDB. Its offline focus makes it a practical fit for local application data on iOS and Android, as well as Windows, macOS, and Linux.
The feature set is concentrated around local storage. AES-256 encryption protects stored data, while transactions support grouped operations and multi-isolate access supports applications that need concurrent isolate usage. Lazy boxes allow on-demand reads, which suits data that does not need to be loaded all at once. Typed object persistence gives Flutter developers a structured way to store custom application models without limiting Hive to simple key-value pairs. Browser support through IndexedDB extends the same storage approach to web applications.
Hive is a strong choice when the requirement is encrypted, offline persistence with a small and focused scope. It is open source and does not require a hosted service for its core storage features. The trade-off is that it provides no data synchronization and no documented hosted pricing or synchronization service. Teams needing cloud-backed replication, a hosted database, or broader integrations should choose a product built around those capabilities instead. The stable pub.dev release is 2.2.3, while the 4.0.0 development line is marked unstable and not production-ready, so production projects should account for that release distinction.
Hive pros and cons
- Where it wins
- AES-256 encryption for local data
- Supports typed objects, transactions, and lazy boxes
- Runs across mobile, desktop, and web platforms
- Where it doesn't
- No built-in data synchronization service
- No hosted database offering
- The 4.0.0 development line is not production-ready
Hive fact sheet, pricing and score →
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