ClickHouse is a free analytics DBMS for big data

DuckDB is an embeddable SQL OLAP Database Management System [GitHub]

FoundationDB is a distributed database designed to handle large volumes of structured data across clusters of commodity servers. It organizes data as an ordered key-value store and employs ACID transactions for all operations. It is especially well-suited for read/write workloads but also has excellent performance for write-intensive workloads. Users interact with the database using API language binding.

MySQL Database Service is a fully managed database service to deploy cloud-native applications using the world’s most popular open source database. It is 100% developed, managed and supported by the MySQL Team.

PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

rqlite is a lightweight, distributed relational database, which uses SQLite as its storage engine. Forming a cluster is very straightforward, it gracefully handles leader elections, and tolerates failures of machines, including the leader. rqlite is available for Linux, OSX, and Microsoft Windows.

SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine. SQLite is the most used database engine in the world.

TiDB is an open source distributed HTAP database compatible with the MySQL protocol

Distributed SQL database in Rust, written as a learning project.