PostgreSQL
Advanced open-source relational database with extension ecosystem.
Why it is included
Gold-standard OSS RDBMS reputation: JSON, GIS (PostGIS), and operational maturity.
Best for
OLTP workloads and analytics with extensions where appropriate.
If you use Windows, Mac, or paid tools
Database alternative to Oracle Database, Microsoft SQL Server, and IBM Db2 for transactional workloads.
Strengths
- SQL standards
- Extensions
- Reliability
Limitations
- Expertise needed at very large scale
Good alternatives
MariaDB · SQLite
Related tools
Databases
SQLite
Embedded SQL engine shipped inside countless applications.
Databases
Apache CouchDB
Document database with replication and HTTP/JSON APIs.
Databases
MariaDB
Community-developed relational database forked from MySQL with storage engines and compatibility focus.
Databases
Valkey
BSD-licensed fork of Redis focused on open community governance under the Linux Foundation.
Operating Systems
Debian
Community-governed GNU/Linux with huge package archives and conservative stability.
Operating Systems
Rocky Linux
RHEL-compatible enterprise Linux rebuilt in the community after CentOS Stream shifts.