There are many alternatives to PostgreSQL for Linux if you are looking for a replacement. The best Linux alternative is SQLite, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to PostgreSQL and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to PostgreSQL are MySQL Community Edition, MariaDB, MongoDB and Microsoft SQL Server.
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world. The source code for SQLite is in the public domain.
MySQL Community Edition is a freely downloadable version of the world's most popular open source database that is supported by an active community of open source developers and enthusiasts.
MariaDB is a backward compatible, drop-in replacement of the MySQL® Database Server. It includes all major open source storage engines.
MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need
SQL Server delivers on Microsoft’s Data Platform vision by helping your organization manage your data by enabling you to store data from structured, semi-structured, and unstructured documents within the database.
Apache CouchDB is a distributed, fault-tolerant and schema-free document-oriented database accessible via a RESTful HTTP / JSON API. It includes incremental map / reduce mechanics for queries and keeps data safe with an append-only datastore.
Cockroach is a distributed key/value datastore which supports ACID transactional semantics and versioned values as first-class features. The primary design goal is global consistency and survivability, hence the name.
With an SQL-style query language, real-time queries with highly-efficient related data retrieval, advanced security permissions for multi-tenant access, and support for performant analytical workloads, SurrealDB is the next generation serverless database.
Firebird is a relational database offering many ANSI SQL-92 features that runs on Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers.
The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance.
ArangoDB database is an open-source NoSQL solution with a flexible data model for documents, graphs, and key-values.
StackGres is a full-stack PostgreSQL distribution for Kubernetes, packed into an easy deployment unit. With a carefully selected and tuned set of surrounding PostgreSQL components.
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