LDAP directory server and client library suite implementing directory protocols for user/group management.

In-memory key-value database with persistence, pub/sub, and Lua scripting; runs as a standalone daemon or cluster.

Open-source SQL relational database server with ACID compliance and multi-threaded architecture.

PostgreSQL 16: object-relational SQL database server with JSON, full-text search, and advanced indexing.

PostgreSQL 18 object-relational database server and client tools (keg-only versioned formula).

PostgreSQL 17: object-relational database server with SQL and procedural language support.

Embeddable SQL OLAP database engine in C++ with fast analytical queries and multi-format data support.

PostgreSQL 15 — object-relational SQL database server with advanced features like JSONB and window functions.

Version-controlled SQL database with Git-like branching, merging, and history for collaborative data management.

C library extending SQLite with spatial geometry functions and geographic data support.

MySQL-compatible open-source relational database server written in C++.

Open-source relational database server (version 8.4); keg-only formula for parallel installation with other MySQL versions.

PostgreSQL extension for vector similarity search with support for multiple distance metrics and approximate nearest-neighbor queries.

Open-source fulltext search engine and column store written in C with plugin support.

Erlang-based message broker and streaming platform for distributed systems.

High-performance in-memory key-value data store and cache server, Redis-compatible.

Distributed event streaming platform and message broker written in Java, requiring JDK runtime.

High-performance, distributed in-memory cache daemon for frequently-accessed data.

Versioned legacy key-value database library (Berkeley DB 5.3) for C/C++ applications.

PostgreSQL extension adding geographic and spatial data types, functions, and indexes for GIS applications.

Fast, lightweight search backend written in Rust that indexes text and returns matching identifiers in microseconds.

Database migration tool that applies versioned SQL scripts in order, with Java runtime.