ObjectBox Java

Judgement

What it is

Building block

What it does

An embedded object database for Android and JVM apps that stores Java and Kotlin objects directly and offers on-device vector search.

Adopt it when

You build an Android or JVM app that needs fast local object storage, or on-device similarity search, without writing SQL.

Watch out

The Java bindings are open but the native core is closed, and sync between devices is a paid commercial product.

Ready for

Production-ready

Runs as

Library

Built with

Java, Kotlin and C

How established

Established: started 9 years ago, latest release V5.4.2.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: ObjectBox Java → JDK → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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