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SQL Formatter

Format, beautify, and analyze your SQL queries with customizable formatting options. Perfect for improving code readability and understanding query structure.

SQL Input

Formatted SQL

Enter SQL query above to see formatted output

SQL Formatting Guide

Formatting Features

  • • Automatic keyword capitalization
  • • Proper indentation and alignment
  • • Configurable comma positioning
  • • Line breaks for readability
  • • JOIN clause formatting
  • • Subquery indentation
  • • Comment preservation
  • • Multiple query separation

Analysis Features

  • • Query type detection
  • • Table and column extraction
  • • Function identification
  • • Keyword highlighting
  • • Complexity assessment
  • • Line and character count
  • • Performance insights
  • • Structure validation

Supported SQL Features

Query Types

  • • SELECT statements
  • • INSERT operations
  • • UPDATE commands
  • • DELETE queries
  • • CREATE statements
  • • ALTER operations
  • • DROP commands

Advanced Features

  • • Complex JOINs
  • • Subqueries
  • • CTEs (WITH clauses)
  • • Window functions
  • • CASE statements
  • • Aggregate functions
  • • UNION operations

Data Types

  • • Numeric types
  • • String types
  • • Date/Time types
  • • Boolean types
  • • Binary types
  • • JSON types
  • • Custom types

Formatting Examples

Before Formatting

select u.id,u.name,u.email,p.title from users u left join profiles p on u.id=p.user_id where u.active=1 and u.created_at>='2023-01-01' order by u.name

After Formatting

SELECT u.id,
       u.name,
       u.email,
       p.title
FROM users u
LEFT JOIN profiles p ON u.id = p.user_id
WHERE u.active = 1
  AND u.created_at >= '2023-01-01'
ORDER BY u.name

Best Practices

  • • Use consistent keyword casing throughout your queries
  • • Align columns and conditions for better readability
  • • Add appropriate line breaks for complex queries
  • • Use meaningful table aliases
  • • Group related conditions together
  • • Comment complex logic for future reference
  • • Test formatted queries before deployment
  • • Consider performance implications of formatting choices

Use Cases

Development

Format queries during development for better code review and maintenance.

Documentation

Create clean, readable SQL examples for documentation and tutorials.

Code Review

Standardize SQL formatting across team members for consistent code reviews.

Learning

Analyze and understand complex queries by breaking them down into readable format.