Bytevault is a high-performance, thread-safe, disk-based key-value store inspired by Bitcask.

Java powered JSON file storage

Your works in Online Storage, The Online To Do List.

LSMTree-based level-compacted thread-safe persistent key-value store.

lightweight LSM tree based storage engine implementation using WAL, memtable and sstable with basic operations

A fast, log structured key-value store.

Handler to manage cached, expiring and persistent stores.

MineDB，storage engine based on disk balance plus tree

网络硬盘是通过存储、分类、检索、分享、协作、下发、回收等方式管理文档、文件、图片、音频、视频等资料的工具。网络硬盘擅长在国产的私有化环境中，管控文档权限、分配存储空间、安全加密、分享共享，同时可以完成一定轻量级的文件任务收发。网络硬盘是一个完全开源的项目，无商业版，但是需要依赖开源的数字底座进行人员岗位管控。

Tiny Database: Query Engine, Storage Engine, Calcite, ANTLR

BBoxDB is a scalable, highly available, and distributed data store for multi-dimensional big data. The software supports operations like multi-dimensional range queries and spatial joins. In addition, data streams are supported.

FireflyDB is a fast, thread-safe, JVM-based key-value storage engine with microsecond latency.

TuplDB is a high-performance, concurrent, transactional, scalable, low-level embedded database.

High-Performance Java-Native-Persistence. Store and load any Java Object Graph or Subgraphs partially, Relieved of Heavy-weight JPA. Microsecond Response Time. Ultra-High Throughput. Minimum of Latencies. Create Ultra-Fast In-Memory Database Applications & Microservices.

A fast, log structured key-value store.

High-Performance Java-Native-Persistence. Store and load any Java Object Graph or Subgraphs partially, Relieved of Heavy-weight JPA. Microsecond Response Time. Ultra-High Throughput. Minimum of Latencies. Create Ultra-Fast In-Memory Database Applications & Microservices.