Eclipse JNoSQL is a framework
NoSQL embedded document store for Java
Node.js client for Google Cloud Firestore: a NoSQL document database
An Embedded NoSQL, Transactional Database Engine
High performance NoSQL database based on bitcask
Type-safe NoSQL with Node & SQLite
Universal HTAP Engine
Couchbase Lite for Dart and Flutter
ReplicaDB is open source tool for database replication
Cloud Database Manager
Node.js client for Google Cloud Datastore
A bare-bones C# .NET Key-value Store in a single database file
Data Access PHP Framework for SQL & high-latency databases
C# .NET NOSQL ( key value store embedded ) ACID database
The MongoDB Database
A fast, low memory, transactional, index, query enabled NoSQL database
Data mapping and persistence toolkit for Ruby
Universal command-line interface for SQL databases
JavaScript SQL database for browser and Node.js for relational tables
Common interface to CouchDB or CouchDB-like databases for Go
CrateDB is a distributed and scalable SQL database
ACID Document Database
PoloDB is an embedded document database
Java and Android Database - fast and lightweight without any ORM
DBMS supporting graph, document, full-text and geospatial models