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SQL Formatter & Beautifier

Format and beautify SQL queries with syntax highlighting and customizable options. Supports MySQL, PostgreSQL, SQL Server, Oracle.

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About SQL Formatter & Beautifier

Our SQL Formatter is a professional-grade tool that transforms messy, unreadable SQL queries into clean, well-structured code. Whether you're working with MySQL, PostgreSQL, SQL Server, or Oracle databases, this formatter helps improve code readability, maintain consistency across your team, and reduce debugging time.

Key Features

Smart Formatting

📝
Intelligent

Advanced parsing engine that understands SQL structure and applies proper indentation and line breaks.

Syntax Highlighting

🎨
Color Coded

Color-coded keywords, strings, numbers, and comments make your SQL queries easier to read and debug.

Multiple Options

⚙️
Customizable

Customize keyword case, indentation style, comma placement, and line break preferences.

How to Use the SQL Formatter

Step-by-Step Guide:

  1. 1
    Paste Your SQL: Copy your unformatted SQL query and paste it into the input textarea.
  2. 2
    Choose Options: Click 'Options' to customize formatting preferences like keyword case and indentation.
  3. 3
    View Results: See your beautifully formatted SQL with syntax highlighting in the output panel.
  4. 4
    Copy & Use: Copy the formatted SQL or download it as a .sql file for use in your projects.

SQL Formatting Best Practices

Proper SQL formatting is crucial for maintaining readable, debuggable code. Here are industry best practices:

✓
Use Consistent Keyword Case: Choose UPPERCASE, lowercase, or Capitalized keywords and stick to it throughout your project.
✓
Proper Indentation: Use consistent indentation (2 or 4 spaces) to show query structure and hierarchy.
✓
Line Breaks for Readability: Place major clauses (SELECT, FROM, WHERE) on separate lines for better readability.
✓
Align Column Names: Align SELECT columns and use consistent comma placement (trailing or leading).
✓
Table Aliases: Use meaningful, consistent table aliases and align JOIN conditions properly.

Supported SQL Features

SQL Statements

  • • SELECT queries with complex joins
  • • INSERT, UPDATE, DELETE statements
  • • CREATE TABLE and ALTER statements
  • • Subqueries and nested queries
  • • UNION and UNION ALL operations
  • • Common Table Expressions (CTEs)

Database Support

  • • MySQL and MariaDB
  • • PostgreSQL
  • • Microsoft SQL Server
  • • Oracle Database
  • • SQLite
  • • Standard ANSI SQL

JOIN Types

  • • INNER JOIN
  • • LEFT JOIN (LEFT OUTER JOIN)
  • • RIGHT JOIN (RIGHT OUTER JOIN)
  • • FULL JOIN (FULL OUTER JOIN)
  • • CROSS JOIN
  • • SELF JOIN

Functions & Operators

  • • Aggregate functions (COUNT, SUM, AVG)
  • • String functions (CONCAT, SUBSTRING)
  • • Date functions (NOW, DATEADD)
  • • Conditional expressions (CASE, WHEN)
  • • Window functions
  • • Mathematical operators

Common SQL Formatting Examples

Before Formatting (Messy SQL)

select u.id,u.name,u.email,p.title from users u join posts p on u.id=p.user_id where u.active=1 and p.published=true order by p.created_at desc limit 10;

After Formatting (Clean SQL)

SELECT
  u.id,
  u.name,
  u.email,
  p.title
FROM users u
JOIN posts p ON u.id = p.user_id
WHERE u.active = 1
  AND p.published = true
ORDER BY p.created_at DESC
LIMIT 10;

Why Use SQL Formatting?

📈
Improved Readability: Well-formatted SQL is easier to read, understand, and maintain by your entire team.
🐛
Faster Debugging: Proper formatting makes it easier to spot syntax errors and logical issues in complex queries.
👥
Team Consistency: Standardized formatting ensures all team members write SQL in a consistent style.
📝
Code Reviews: Formatted code is much easier to review, leading to better quality and fewer bugs.
⚡
Development Speed: Clean code structure helps developers work faster and make fewer mistakes.

Pro Tips for SQL Formatting

  • 💡
    Use Our Minify Feature: For production environments, use the minify option to reduce query size while keeping functionality.
  • 💡
    Consistent Table Aliases: Use meaningful aliases (u for users, p for posts) and keep them consistent across your project.
  • 💡
    Comment Complex Logic: Add SQL comments (-- or /* */) to explain complex business logic or unusual query patterns.
  • 💡
    Format Before Committing: Always format your SQL queries before committing to version control for consistency.
  • 💡
    Use Uppercase Keywords: UPPERCASE keywords help distinguish SQL syntax from your data and improve readability.

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Frequently Asked Questions

What is SQL formatting and why is it important?

SQL formatting is the process of organizing SQL code with proper indentation, line breaks, and consistent styling to improve readability and maintainability. Well-formatted SQL is easier to debug, review, and understand by team members, leading to fewer errors and faster development.

Which SQL databases does this formatter support?

Our SQL formatter supports all major database systems including MySQL, PostgreSQL, Microsoft SQL Server, Oracle Database, SQLite, and standard ANSI SQL. The formatter recognizes common syntax patterns and keywords used across these database platforms.

Can I customize the formatting style?

Yes! Our formatter offers extensive customization options including keyword case (UPPERCASE, lowercase, Capitalized), indentation style (spaces or tabs), indentation size, comma placement (leading or trailing), and line break preferences. You can adjust these settings to match your team's coding standards.

Is this SQL formatter free to use?

Yes, our SQL formatter is completely free to use with no limitations. You can format unlimited SQL queries, access all formatting options, and download formatted results without any cost or registration required.

Does the formatter validate SQL syntax?

Our formatter includes basic syntax validation and will highlight obvious errors in your SQL queries. However, for comprehensive syntax checking specific to your database system, we recommend testing formatted queries in your database environment or using a dedicated SQL validator.

Can I use this tool offline?

Yes, our SQL formatter works entirely in your browser using JavaScript. Once the page loads, you can format SQL queries without an internet connection. No data is sent to external servers, ensuring your SQL queries remain private and secure.

How do I copy or download formatted SQL?

After formatting your SQL, you can copy the result to your clipboard using the "Copy" button, or download it as a .sql file using the "Download" button. The copy function works on all modern browsers and preserves the formatting and indentation.

What's the difference between formatting and minifying SQL?

Formatting adds proper indentation, line breaks, and spacing to make SQL more readable for humans. Minifying does the opposite - it removes unnecessary whitespace and line breaks to make SQL more compact for production environments where file size matters. Our tool offers both options.