SQL Query Formatter
Format and beautify your SQL queries for better readability. Automatically indent and capitalize SQL keywords.
Professional SQL Query Formatting
Well-formatted SQL is essential for maintainable, debuggable code. Our SQL formatter transforms messy, single-line queries into properly indented, readable SQL that follows best practices.
Formatting Features
- Keyword capitalization: Automatically uppercase SQL keywords for clarity
- Proper line breaks: Each clause on its own line
- Smart indentation: Nested clauses are properly indented
- Uniform spacing: Consistent spacing throughout
- JOIN formatting: All JOIN types handled correctly
Why Format SQL?
Formatted SQL is easier to read, debug, and maintain. When queries span multiple tables with complex JOINs, proper formatting can mean the difference between understanding your query in seconds versus minutes. Code reviews go faster with consistent formatting.
SQL Best Practices
- Use aliases: Give tables meaningful short names (u for users)
- Explicit JOINs: Always specify JOIN type (INNER, LEFT, etc.)
- Column lists: Avoid SELECT * in production code
- Consistent case: Keywords uppercase, identifiers lowercase
- Comment complex logic: Add comments for complex WHERE clauses
Supported SQL Features
Works with SELECT, INSERT, UPDATE, DELETE queries. Handles complex JOINs, subqueries, GROUP BY, ORDER BY, HAVING clauses. Compatible with MySQL, PostgreSQL, SQL Server, and SQLite syntax.