PostgreSQL is the most-loved open-source relational database, running production workloads at Apple, Instagram, Reddit, Robinhood, and essentially every modern SaaS company.
Source: GitHub · fetched 2026-04-17
PostgreSQL is a relational database first released in 1996, descended from the POSTGRES research project at UC Berkeley. It is released under the PostgreSQL License (a permissive MIT/BSD-style license) and developed by the PostgreSQL Global Development Group, a distributed team of volunteer committers with no single corporate owner.
Its reputation rests on correctness, extensibility (PostGIS, pgvector, TimescaleDB, Citus, and hundreds of other extensions), and SQL standards compliance. Cloud-managed Postgres is available on every major cloud—AWS RDS, Aurora, GCP Cloud SQL, AlloyDB, Azure Database—plus modern serverless and branching offerings from Neon, Supabase, Crunchy Bridge, and Render. It is the default database for most new SaaS products started after 2018.
Production PostgreSQL runs at Apple, Instagram (one of the largest single Postgres deployments in the world), Reddit, Robinhood, Spotify, GitLab, Skype, Stripe, OpenAI, and essentially every modern SaaS startup. It is the most requested database in Stack Overflow's annual developer survey and the default in most cloud-native SaaS stacks.
Postgres users are backend engineers writing application code, data engineers building analytics pipelines, DBAs managing replication and backups, and platform engineers running self-hosted clusters or managed offerings. These personas buy hosted Postgres, connection poolers (PgBouncer), migration tooling (Flyway, Sqitch, Prisma), observability, and ETL/ELT tools (Fivetran, Airbyte, dbt).
According to the PostgreSQL README: “PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard.” (source)
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PostgreSQL is used in production at Apple, Spotify, Instagram, Reddit, Twitch, and most of the internet — PostgreSQL is the most popular open-source relational database and the default choice for new production applications.
The PostgreSQL Global Development Group, a distributed volunteer community with no single controlling company. Major contributors include EDB (EnterpriseDB), Crunchy Data, Amazon, Microsoft, and Google.
MySQL/MariaDB (popular alternative RDBMS), SQLite (embedded, single-file), CockroachDB (distributed Postgres-compatible), Supabase (Postgres-as-a-service), Neon (serverless Postgres), and PlanetScale (MySQL-compatible, serverless).
PostgreSQL has 58 contributors (GitHub, 2026/04). It is one of the more actively contributed open-source projects in its category, with contributions from both individual developers and corporate engineering teams.
PostgreSQL is used in production by early adopters. It has 20.6k GitHub stars and 58 contributors (GitHub, 2026/04). Check the latest release date and your team's risk tolerance for vendor and community support before adopting for critical workloads.
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