SQL Formatter
Format and beautify SQL queries
Enter SQL query to format
What is SQL Formatting?
SQL formatting beautifies SQL queries by adding proper indentation, line breaks, and spacing to make them more readable and maintainable. Well-formatted SQL is easier to debug, review, and understand, especially for complex queries with multiple joins, subqueries, or conditions.
How to Use
- Paste your SQL query into the input field
- Select your SQL dialect (MySQL, PostgreSQL, etc.)
- Choose your preferred indentation (2 or 4 spaces)
- Click "Format SQL" to beautify your query
- Copy the formatted result
Example
Input (minified SQL):
SELECT u.id,u.name,o.total FROM users u JOIN orders o ON u.id=o.user_id WHERE o.status='completed' ORDER BY o.total DESC;Output (formatted SQL):
SELECT
u.id,
u.name,
o.total
FROM
users u
JOIN orders o ON u.id = o.user_id
WHERE
o.status = 'completed'
ORDER BY
o.total DESC;Supported SQL Dialects
- Standard SQL: ANSI SQL standard syntax
- MySQL: MySQL-specific syntax and functions
- PostgreSQL: PostgreSQL-specific syntax
- MariaDB: MariaDB-specific features
- PL/SQL: Oracle PL/SQL syntax
- T-SQL: Microsoft SQL Server syntax
Privacy Notice
All SQL formatting happens entirely in your browser. Your queries are never transmitted to any server, ensuring complete privacy for sensitive database queries and schemas.
Frequently Asked Questions
Does this tool validate SQL syntax?
This tool focuses on formatting rather than validation. It will attempt to format any input and may produce unexpected results for invalid SQL. If formatting fails, check your SQL syntax for errors like missing quotes, unclosed parentheses, or invalid keywords.
Which SQL dialect should I choose?
Choose the dialect that matches your database system. If you're unsure, start with "Standard SQL" which works for most common queries. Use dialect-specific options (MySQL, PostgreSQL, etc.) if your query uses database-specific syntax or functions.
Can I format stored procedures or complex queries?
Yes, this tool supports formatting complex SQL including stored procedures, CTEs (Common Table Expressions), window functions, and nested subqueries. For very large SQL files (>100KB), the tool automatically uses a Web Worker to prevent browser freezing.
Is my SQL query sent to a server?
No, all SQL formatting happens in your browser. Your queries never leave your device, ensuring complete privacy for sensitive database schemas and data.
Why is formatting taking a while?
For large SQL files (>100KB), the formatter uses a Web Worker to avoid blocking the browser UI. This ensures the page remains responsive even when formatting complex queries. The first format may take slightly longer as the formatting library is loaded on-demand.