ObjectBox

ObjectBox is ranked #6 of 30 in embedded databases on Freedom251. It runs on Android, API, iOS, Linux, macOS, Self-hosted, Windows. There is a free plan. A free trial is offered.

ObjectBox plans and pricing

All plans

ObjectBox Database Free No cost Core database; fundamental capabilities objectbox.io · 29 Sept 2026

ObjectBox Sync Not published Per project; personalized quote Pricing varies by users, devices, sync instances, business model, support, and additional needs objectbox.io · 29 Sept 2026

Compared on embedded databases

Free plan: Yes
Supported platforms: Android, iOS, Linux, Windows, macOS, Raspberry Pi, and POSIX systems
Database model: document
Query interface: api
Data synchronization: Yes
Maximum database size: 1 GB

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ObjectBox

Product: ObjectBox is an embedded, object-oriented NoSQL database for mobile apps and IoT devices.
Data sync: ObjectBox Sync synchronizes data between devices and a backend or server, including for offline-first use cases.
Database features: The database offers native object APIs, object relationships, reactive observers, ACID transactions, and automatic schema migration.
Vector search: The FAQ says ObjectBox supports vector search and that there are no limits on embedding-column dimensions.
Languages: ObjectBox lists APIs for Java, Kotlin, Swift, Flutter/Dart, Go, Python, and C/C++.
Platforms: ObjectBox lists Android, iOS, Windows, macOS, Linux, POSIX systems, and Raspberry Pi among supported platforms or devices.
Integrations: ObjectBox says it supports directly syncing to MongoDB; other backend database connectors may need to be custom built.
Hosting: The Sync Server can be self-hosted on POSIX systems and cloud providers; the FAQ says ObjectBox does not currently provide cloud hosting.
Security: ObjectBox Sync Server supports JWT authentication and can use TLS by supplying a certificate; its documentation describes no-authentication mode as insecure.
Certification: The company’s About page states that ObjectBox is ISO-certified and links to its quality policy.
Support: The FAQ directs questions to documentation and Stack Overflow, and says professional support is offered to paying customers.
Limits: The FAQ says Mesh Sync is currently available for Android Java/Kotlin and Flutter/Dart starting with version 6.0.0-beta, with APIs potentially changing before final release.
Intended users: ObjectBox describes its focus as mobile and IoT development, particularly decentralized systems of restricted devices and offline scenarios.
Headquarters: Germany, Europe
Price from: Free

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Where it ranks on Freedom251

Best Embedded Databases in 2026#6 of 30
Best Mobile Databases in 2026#6 of 26

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Sources

objectbox.io/mobile-database/· checked 29 Sept 2026
objectbox.io/faq/· checked 29 Sept 2026
sync.objectbox.io/sync-server/configuration· checked 29 Sept 2026
objectbox.io/about-us/· checked 29 Sept 2026
objectbox.io· checked 28 Sept 2026
objectbox.io/sync-pricing/· checked 29 Sept 2026