ObjectBox Python is a lightweight yet powerful on-device database & vector database. Store Python objects and vectors directly with an easy-to-use CRUD API while enjoying exceptional speed and efficiency. And because it's an embedded database, there's no setup required. Its advanced vector search empowers AI applications including RAG, generative AI, and similarity searches. Designed for high performance, the ObjectBox database runs locally on-device. As an offline-first solution, ObjectBox makes sure your app reliably works offline as well as online.

ACID compliant. Claims to be scalable and sustainable (i.e., it doesn't need a lot of horsepower to run). Queries can be filtered, even across relations.