MySQL Formatter: Beautify MySQL Queries Online

Format and beautify MySQL queries with our free online tool. MySQL is the world's most popular open-source relational database, powering millions of web applications. Our formatter understands MySQL-specific syntax including backtick identifiers, stored procedures, and MySQL functions, making your queries clean and readable.

Paste your MySQL query to instantly format it with proper indentation and line breaks. Choose keyword casing (UPPERCASE, lowercase, or Capitalize) and indentation style (2 spaces, 4 spaces, or tabs). Perfect for developers working with MySQL databases, WordPress, Laravel, and other MySQL-based applications. All formatting happens in your browser - your queries never leave your device. 

Formatted MySQL query will appear here...

Why Format MySQL Queries?

MySQL queries can become difficult to read, especially when dealing with complex JOINs, subqueries, or stored procedures. Proper formatting makes your MySQL code more maintainable, easier to debug, and improves collaboration with team members. Well-formatted queries are essential for code reviews and documentation.

MySQL-Specific Syntax Support:

  • Backtick Identifiers: MySQL uses backticks (`) to quote table and column names
  • LIMIT Clause: MySQL's LIMIT syntax (with or without OFFSET)
  • AUTO_INCREMENT: MySQL's auto-incrementing primary key feature
  • Storage Engines: ENGINE=InnoDB, ENGINE=MyISAM, etc.
  • MySQL Functions: CONCAT, IFNULL, DATE_FORMAT, GROUP_CONCAT
  • Stored Procedures: CREATE PROCEDURE, DELIMITER, BEGIN/END blocks
  • MySQL Comments: Both -- and # style comments

Example MySQL Query:

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.created_at>='2024-01-01' group by u.id,u.name,u.email having count(o.id)>5 order by order_count desc limit 10

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.created_at >= '2024-01-01'
GROUP BY u.id, u.name, u.email
HAVING COUNT(o.id) > 5
ORDER BY order_count DESC
LIMIT 10

Common MySQL Use Cases:

  • WordPress Development: Format complex WP database queries
  • Laravel/PHP Applications: Clean up Eloquent raw queries
  • Data Analysis: Make analytical queries more readable
  • Database Migrations: Format ALTER TABLE and schema changes
  • Code Reviews: Present queries in a consistent, readable format
  • Documentation: Generate clean query examples for docs

Features:

  • Format MySQL queries with custom indentation
  • Minify queries for production use
  • Keyword casing options (UPPERCASE, lowercase, Capitalize)
  • Syntax validation for balanced parentheses
  • Query statistics (size, keywords, compression ratio)
  • One-click copy to clipboard
  • 100% client-side - queries never leave your browser
  • Supports MySQL 5.7, 8.0, and newer versions

MySQL Best Practices:

  • Use UPPERCASE for SQL keywords (SELECT, FROM, WHERE)
  • Always use backticks for reserved words as identifiers
  • Indent subqueries and nested SELECT statements
  • Put each column on its own line in SELECT statements
  • Use meaningful table aliases (users u, orders o)
  • Format queries for development, minify for production

Frequently Asked Questions

What MySQL-specific features does this formatter support? +

Our MySQL formatter handles backtick identifiers (`table_name`), MySQL-specific functions (IFNULL, GROUP_CONCAT), stored procedures, triggers, AUTO_INCREMENT, ENGINE specifications, and MySQL-specific data types. It properly formats INSERT...ON DUPLICATE KEY UPDATE and other MySQL extensions.

Why use a MySQL-specific formatter instead of a general SQL formatter? +

MySQL has unique syntax like backtick quoting for identifiers, specific storage engine declarations, and functions that differ from standard SQL. A MySQL-specific formatter understands these nuances and formats them correctly, whereas a generic formatter might mishandle MySQL-specific constructs.

How do I format stored procedures and functions? +

Paste your entire CREATE PROCEDURE or CREATE FUNCTION statement. The formatter handles DELIMITER changes, BEGIN/END blocks, DECLARE statements, and control flow structures (IF, WHILE, LOOP). Each statement within the procedure is properly indented.

Can I format multiple MySQL statements at once? +

Yes! Separate your statements with semicolons. The formatter will process each statement independently while maintaining consistent styling across all of them. This is useful for formatting entire migration files or SQL dumps.

Does this work with MariaDB queries? +

Yes, MariaDB is highly compatible with MySQL syntax. Our formatter handles most MariaDB queries correctly since MariaDB maintains MySQL compatibility. Some MariaDB-specific extensions may vary in support.