SQL Formatter

Format and beautify your SQL queries with proper indentation, line breaks, and keyword formatting. Improve code readability and maintainability with our free online SQL formatter.

Formatting Options

Before and After Example

Before (Unformatted):
SELECT u.id,u.name,u.email,COUNT(o.id) as order_count FROM users u LEFT JOIN orders o ON u.id=o.user_id WHERE u.status='active' AND u.created_at>'2023-01-01' GROUP BY u.id,u.name,u.email HAVING COUNT(o.id)>0 ORDER BY order_count DESC,u.name ASC LIMIT 100;
After (Formatted):
SELECT u.id, u.name, u.email, COUNT(o.id) AS order_count FROM users u LEFT JOIN orders o ON u.id = o.user_id WHERE u.status = 'active' AND u.created_at > '2023-01-01' GROUP BY u.id, u.name, u.email HAVING COUNT(o.id) > 0 ORDER BY order_count DESC, u.name ASC LIMIT 100;

Why Format SQL?

Well-formatted SQL code is essential for maintaining readable, debuggable, and collaborative database code. Proper formatting helps developers quickly understand complex queries, identify issues, and maintain consistency across team projects.

Benefits of SQL Formatting

  • Improved Readability: Clean indentation and line breaks make queries easier to read
  • Easier Debugging: Well-structured code helps identify syntax errors and logic issues
  • Team Collaboration: Consistent formatting standards improve team productivity
  • Code Maintenance: Formatted code is easier to modify and extend
  • Professional Standards: Clean code reflects best practices and professionalism

Formatting Features

  • Automatic keyword capitalization (SELECT, FROM, WHERE, etc.)
  • Proper indentation for nested queries and clauses
  • Line breaks at appropriate SQL clause boundaries
  • Consistent spacing around operators and keywords
  • Support for complex joins, subqueries, and CTEs

SQL Formatting Best Practices

1. Use Consistent Keyword Casing

Choose either uppercase or lowercase for SQL keywords and stick to it throughout your queries. Many teams prefer uppercase keywords for better visibility.

2. Break Long Queries into Multiple Lines

Place each major clause (SELECT, FROM, WHERE, GROUP BY, etc.) on its own line for better readability.

3. Indent Subqueries and Nested Elements

Use consistent indentation to show the structure and hierarchy of your queries, especially for subqueries and complex joins.

4. Align Related Elements

Align column names, table aliases, and other related elements to create visual consistency and improve scanability.

5. Use Meaningful Aliases

Choose descriptive table and column aliases that make your queries self-documenting and easier to understand.

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