SQL Input

Enter your SQL query:

SQL Dialect:

Indent Size:

Keyword Case:

Line Breaks:

Align Columns Align Commas

Remove Comments Add Semicolon

Formatted SQL

Formatted Result:

Formatted SQL will appear here...

Ready to format SQL

SQL Validation

Enter SQL and click 'Validate SQL' to check for syntax errors and best practices

Batch SQL Processing

Process multiple SQL statements at once (separated by semicolons)

Multiple SQL Statements:

Batch Processing Result:

Batch processing results will appear here...

Ready to process batch SQL

About SQL Formatter

Our SQL Formatter helps developers write clean, readable, and maintainable SQL code. It supports multiple SQL dialects and provides advanced formatting options for professional database development.

Key Features

Multi-Dialect Support: MySQL, PostgreSQL, SQLite, SQL Server, Oracle
Advanced Formatting: Customizable indentation, keyword casing, and alignment
SQL Validation: Syntax checking and best practice recommendations
Batch Processing: Format multiple SQL statements at once
Syntax Highlighting: Color-coded SQL for better readability
Minification: Compress SQL for production use
Export Options: Download formatted SQL as .sql files

Formatting Options

Keyword Case: Convert keywords to uppercase, lowercase, or preserve original
Indentation: Choose between 2, 4, 8 spaces or tabs
Line Breaks: Control where line breaks appear in your SQL
Column Alignment: Align SELECT columns and comma placement
Comment Handling: Preserve or remove SQL comments

Best Practices

Consistent Formatting: Use the same formatting style across your project
Readable Queries: Break complex queries into multiple lines
Keyword Consistency: Choose uppercase or lowercase and stick to it
Proper Indentation: Use consistent indentation for nested queries
Comment Your Code: Add comments for complex business logic

Common Use Cases

SQL Formatter serves various database development and maintenance needs:

🔧 Development

Format messy SQL queries
Standardize team coding style
Prepare SQL for code reviews
Clean up generated queries

📚 Learning & Teaching

Make SQL more readable for students
Demonstrate best practices
Format examples for documentation
Create clean tutorial content

🚀 Production

Minify SQL for deployment
Validate before execution
Optimize query readability
Prepare migration scripts

🔍 Analysis & Debugging

Format complex queries for analysis
Debug SQL syntax errors
Review performance queries
Analyze legacy database code

Frequently Asked Questions

Which SQL dialects are supported?

We support Standard SQL, MySQL, PostgreSQL, SQLite, SQL Server, and Oracle. The formatter adapts its rules based on the selected dialect to ensure compatibility.

Can I format stored procedures and functions?

Yes! Our formatter handles complex SQL including stored procedures, functions, triggers, and nested queries with proper indentation and structure.

Does the formatter validate SQL syntax?

Yes, the validation feature checks for common syntax errors, missing keywords, unmatched parentheses, and provides suggestions for best practices.

Can I process multiple SQL statements at once?

Absolutely! Use the batch processing feature to format multiple SQL statements separated by semicolons. Each statement will be formatted individually.

Is my SQL data secure?

Yes! All SQL processing happens locally in your browser. Your queries are never sent to our servers or stored anywhere. Clear your browser after use for maximum security.

Can I customize the formatting style?

Yes! You can customize indentation size, keyword case, line break placement, column alignment, and many other formatting options to match your coding standards.

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