SQL Formatter
Format and beautify your SQL queries online. Make your SQL code clean, readable, and well-structured with proper indentation.
Format SQL Query
How to Use the SQL Formatter
Enter the SQL Query
Paste your SQL query into the input text area.
Format
Click the Format SQL button or use Ctrl+Enter to beautify your query.
Copy & Use
Copy the formatted SQL output and use it in your database tools.
What Is SQL Formatting?
SQL formatting is the process of adding proper indentation, line breaks, and spacing to SQL queries. While SQL doesn't require specific formatting to execute, well-formatted queries are dramatically easier to read, understand, and maintain. ZourTools SQL Formatter transforms messy, minified, or poorly formatted SQL into clean, readable code.
Why Format SQL?
Readable SQL is essential for database development and maintenance. Formatted queries are easier to debug when errors occur. They're easier to review during code reviews. They're easier to modify when requirements change. They're easier to share with team members. Whether you're writing complex joins or simple selects, proper formatting improves every aspect of database work.
Key Features
- Automatic Indentation: Properly indents nested queries and conditions.
- Keyword Uppercasing: Formats SQL keywords in uppercase for clarity.
- Line Break Insertion: Places major clauses on separate lines.
- Query Statistics: View line count, keyword count, and character count.
- Instant Formatting: Results appear immediately upon clicking.
- Copy to Clipboard: One-click copying of formatted SQL.
- No Registration Required: Start formatting immediately.
- Browser-Based: Your queries never leave your device.
SQL Formatting Best Practices
Keyword Case
Use uppercase for SQL keywords (SELECT, FROM, WHERE) and lowercase for identifiers (table names, columns). This makes keywords stand out.
Indentation
Indent nested queries and conditions consistently. Use 2 or 4 spaces for each level of nesting.
Line Breaks
Place major clauses (SELECT, FROM, WHERE, GROUP BY, ORDER BY) on separate lines for clarity.
Alignment
Align related elements vertically when possible, such as column lists or conditions.
Comments
Include comments explaining complex logic. Format comments consistently.
Common SQL Formatting Scenarios
Simple SELECT Queries
Format column lists, table references, and WHERE conditions on separate lines for clarity.
Complex JOINs
Format each JOIN clause on its own line with proper indentation for the ON condition.
Subqueries
Indent subqueries to show their relationship to the outer query.
UNION Queries
Separate UNION components with clear line breaks for readability.
Stored Procedures
Format procedure bodies with consistent indentation and clear statement separation.
Common Use Cases
Code Review
Formatted SQL is easier to review, making code reviews more effective.
Documentation
Well-formatted queries are easier to document and explain.
Debugging
Formatted queries make it easier to identify syntax errors and logic issues.
Sharing Queries
Formatted SQL is easier to share with colleagues and include in documentation.
Learning SQL
Formatted queries help beginners understand SQL structure and syntax.
Frequently Asked Questions
Does formatting change how SQL executes?
No, formatting only changes whitespace. The query executes identically.
Which SQL dialects are supported?
Our formatter works with standard SQL and most common dialects, including MySQL, PostgreSQL, and SQL Server.
Can I format stored procedures?
Yes, our formatter handles stored procedures and complex multi-statement queries.
Is there a query size limit?
There's no strict limit, but very large queries may take a moment to process.
Is the tool free?
Yes, ZourTools SQL Formatter is completely free, with no limitations.