SQL Formatter
Beautify and format SQL queries with proper indentation and line breaks for better readability.
SQL formatting conventions
Keywords in uppercase
SELECT, FROM, WHERE, JOIN are visually distinct from table and column names at a glance.
One clause per line
SELECT, FROM, WHERE, and each JOIN start a new line — makes the query's structure scannable instead of a wall of text.
Indent subqueries and conditions
Nested SELECTs and multi-condition WHERE/AND/OR blocks are indented one level so the logical grouping is visible without reading closely.
One column per line in SELECT (for wide queries)
When selecting many columns, one per line makes it obvious when a column is added, removed, or aliased in a diff.
Before and after
BEFORE
select u.id, u.name, o.total from users u join orders o on u.id=o.user_id where o.status='completed' and o.total>100 order by o.total desc
AFTER
SELECT u.id, u.name, o.total FROM users u JOIN orders o ON u.id = o.user_id WHERE o.status = 'completed' AND o.total > 100 ORDER BY o.total DESC
How it works
Paste SQL
Copy your SQL query into the input box above.
Format
Click "Format SQL" to beautify with proper indentation and line breaks.
Copy Result
Copy the formatted SQL to your clipboard with one click.
Common use cases
Code Review
Format messy SQL queries before code review to improve readability and catch errors.
Database Development
Beautify complex queries with multiple joins and subqueries for easier debugging.
Documentation
Format SQL examples in documentation to make them more readable and professional.
Learning SQL
Format queries to understand structure and learn proper SQL formatting conventions.
Frequently asked questions
Is my SQL query stored or sent to a server?
No. All SQL formatting happens entirely in your browser using JavaScript. Your queries never leave your computer, ensuring complete privacy and security.
What SQL dialects are supported?
This formatter works with standard SQL syntax and is compatible with MySQL, PostgreSQL, SQL Server, Oracle, and other major databases.
Can I format large SQL queries?
Yes, this tool can handle SQL queries up to several thousand lines. Very large queries may take a moment to format.
Does it validate SQL syntax?
This is a formatter, not a validator. It will format any text you provide, but it does not check for SQL syntax errors.
Can I use this tool offline?
Yes, once the page loads, the tool works completely offline since all processing happens in your browser.
Will it change my query logic?
No, the formatter only adds whitespace and line breaks for readability. It never changes the actual SQL logic or keywords.
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