Free Online PostgreSQL 15 Playground
Current database engine: PostgreSQL 15 (psql15)
This page runs PostgreSQL 15 (15.18) in a clean, empty database. PostgreSQL 15 added the SQL-standard MERGE command for conditional insert, update and delete in one statement, UNIQUE NULLS NOT DISTINCT constraints and faster sorting.
Use it to check queries for systems still on PostgreSQL 15, and compare them with PostgreSQL 16, 17 or 18.
NEW Now embed mode is available: put an interactive SQL editor on any web page with one script tag.
SQLize is a browser-based PostgreSQL 15 SQL editor and query runner for fast testing, debugging, formatting, and sharing. It is useful for interview tasks, migration checks, analytics validation, and learning SQL in a real execution environment.
Developers, students and data analysts from more than 100 countries, most of all India, the United States, Russia, Brazil, Italy, Poland and Vietnam, use SQLize to run PostgreSQL 15 queries online without installing a database server. A shareable link turns any query into a reproducible example for a colleague, a teacher or a question on Stack Overflow.