SQL Formatter
Format SQL queries with proper indentation
About This Tool
What is SQL?
SQL (Structured Query Language) is a domain-specific language used for managing and querying relational databases. It supports data definition (CREATE, ALTER, DROP), data manipulation (SELECT, INSERT, UPDATE, DELETE), and access control (GRANT, REVOKE). Learn more on Wikipedia.
Why Format SQL?
Complex SQL queries can span dozens of lines with nested subqueries, JOINs, and CTEs. Without proper formatting, these queries become extremely difficult to read, debug, and maintain. A SQL formatter (or beautifier) automatically applies consistent indentation, line breaks, and keyword casing to make queries immediately readable.
Features
This tool supports multiple SQL dialects including standard SQL, MySQL, PostgreSQL, T-SQL (SQL Server), PL/SQL (Oracle), and more. You can optionally uppercase all keywords for consistent style. The formatter runs entirely in your browser.
Common Use Cases
Developers use SQL formatters before code reviews, to debug slow queries from database logs, to document stored procedures, and to prepare SQL for presentations or teaching materials.