SQL Formatter
Format SQL queries with indentation and uppercase keywords.
Why format SQL queries
Complex SQL queries with multiple JOINs, subqueries, and nested WHERE clauses become hard to review when written on a single line or with inconsistent indentation. Formatting the query — putting each clause (SELECT, FROM, WHERE, JOIN, GROUP BY) on its own line, with indentation and uppercase keywords — makes the logic much easier to follow during code review or debugging.
The convention of writing SQL keywords in uppercase (SELECT, INSERT, WHERE) and identifiers (table and column names) in lowercase is widely adopted because it visually separates language syntax from database-specific data.
Frequently asked questions
Does formatting change my query's result?
No. Formatting only reorganizes whitespace, line breaks, and keyword capitalization — the query's logic and result remain exactly the same.
Why are there different SQL dialects?
Each database system (MySQL, PostgreSQL, SQL Server) implements the SQL standard with its own extensions and syntax for specific features, so a query optimized for one database may need adjustments to run on another.
Is my query sent to any server when formatting?
No. All formatting happens locally in your browser, without sending the query to any external server.