Format, Validate & Analyze SQL Queries
A comprehensive SQL formatting, validation, and analysis tool designed to help developers write clean, efficient, and secure SQL queries.
SQL Formatter Pro provides a complete suite of tools for working with SQL queries. Whether you need to beautify messy code, validate syntax, or analyze performance, this tool has you covered.
Tip: Use the quick action buttons below the editor for instant formatting, minification, or expansion of your SQL.
The SQL Formatter Pro provides three formatting modes to suit different needs:
Beautify your SQL code with proper indentation and spacing using configurable settings.
Compress SQL to a single line for storage, transmission, or compact storage.
Create a fully expanded, highly readable version of your query for documentation.
Keyword Case
Controls SQL keyword casing - UPPERCASE, lowercase, or preserve original
Format Style
Layout density - Expanded, Compact, or Condensed
Comma Position
Place commas before (leading) or after (trailing) columns
Indent Size
Spaces per indentation level (0-8 spaces)
Comprehensive validation checks your SQL for issues across multiple categories:
Detects structural issues:
Identifies potential vulnerabilities:
Flags inefficient patterns:
Checks coding standards:
Critical
Query will fail or poses severe security risk
High
Likely to cause issues or significant impact
Medium
Potential issues or minor concerns
Low
Style recommendations or informational
Supported SQL Dialects
Validate against Generic SQL, MySQL, PostgreSQL, SQLite, SQL Server (MSSQL), or Oracle syntax.
Get detailed insights about your query performance and receive optimization recommendations.
Analyze your query complexity:
View simulated execution plan:
Receive intelligent suggestions for index creation based on:
WHERE Clause
Columns frequently used for filtering
JOIN Conditions
Columns used to join tables
ORDER BY
Columns used for sorting results
Optimization Suggestions
Each suggestion includes before/after code examples, impact level (High/Medium/Low), and implementation difficulty (Easy/Medium/Hard).
Customize both formatting and validation behavior to match your preferences and requirements.
Note: Settings can be reset to defaults at any time using the Reset button in each settings panel.
See how SQL Formatter Pro transforms messy queries into clean, readable code.
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.created_at>='2024-01-01' group by u.id,u.name,u.email having count(o.id)>0 order by order_count desc;
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.created_at >= '2024-01-01' GROUP BY u.id, u.name, u.email HAVING COUNT(o.id) > 0 ORDER BY order_count DESC;
Format SQL queries before submitting for code review to ensure consistency across your codebase.
Validate and format SQL statements when migrating between database systems to catch compatibility issues.
Use the analysis features to identify slow queries and receive optimization suggestions.
Check SQL for potential injection vulnerabilities and dangerous patterns before deployment.
Understand query structure and learn best practices through formatting and validation feedback.
Identify syntax errors and performance issues quickly with detailed validation reports.