4D Alternatives

Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.

It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...

MongoDB (from "humongous") is a scalable, high-performance NoSQL database.

open-source

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

open-source

Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC

Document-Oriented NoSQL Database

ESM Tools is a powerful and widely known software development platform that comes with a centralized model infrastructure, providing the common frame for compiling, running, downloading, and organizing models (ones or multiple).

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NoSQL JSON database for rapid, iterative app development.

OrientDB - The World's First Distributed Multi-Model NoSQL Database with a Graph Database Engine.

Meet Neo4j: The graph database platform powering today's mission-critical enterprise applications, including artificial intelligence, fraud detection and recommendations.

A distributed open-source database with a flexible data model for documents, graphs, and key-values.

Robo 3T is a tool for managing your MongoDB installation. Robo 3T is a rebranding of the tool formerly known as Robomongo.