An in-memory database that persists on disk
Hypothetical Indexes for PostgreSQL
High performance NoSQL database based on bitcask
Mobile database: a replacement for Core Data & SQLite
H2 is an embeddable RDBMS written in Java
Embeddable, replicated and fault tolerant SQL engine
A tiny KV storage based on skiplist written in C++ language
Scalable, fast, and disk-friendly vector search in Postgres
Apache IoTDB
Irmin is a distributed database
DLE provides blazing-fast database cloning to build dev environments
Database for Go with custom indexing and geospatial support
GridDB is a next-generation open source database
A relentless key-value store for the browser
Distributed database ecosphere
High performance datastore for time series and tick data
Relational Database
DataFrame server for financial timeseries data
A basic REST service for JSON data - enough for prototyping and MVPs
Command-line admin tool for observing and troubleshooting Postgres
Columnar storage extension for Postgres
An Embedded NoSQL, Transactional Database Engine
An Internet-scale database
Haskell library that simplifies access to remote data
An in-memory database based on the CouchDB REST API