SQL Formatter/Beautifier
Format and beautify SQL queries
SQL Formatter/Beautifier
Format and beautify SQL queries
About SQL Formatter
Format SQL queries with proper indentation and keyword capitalization. Makes complex queries more readable.
Privacy & Security
All SQL formatting happens entirely in your browser using JavaScript. Your SQL queries are never uploaded to our servers, transmitted over the network, stored in databases, or logged anywhere. This is essential when working with queries containing customer data, financial records, or proprietary business logic. When you close the page, your SQL is permanently erased from browser memory. Completely private and secure for even the most sensitive database queries.
About SQL Formatter
Beautify and format SQL queries with our free online SQL formatter. Whether you're a database administrator optimizing complex queries, a backend developer debugging ORM-generated SQL, a data analyst writing reports, or a student learning database programming, our tool instantly transforms messy, one-line SQL into readable, properly indented queries. Perfect for formatting queries from logs, understanding auto-generated SQL, and making database code maintainable with support for all major SQL dialects including MySQL, PostgreSQL, Oracle, and Microsoft SQL Server.
Key Features
Multi-Database Support
Format SQL for MySQL, PostgreSQL, Oracle, SQL Server, SQLite, and more
Instant Formatting
Beautify complex SQL queries with proper indentation in milliseconds
Keyword Capitalization
Automatically uppercase SQL keywords (SELECT, FROM, WHERE) for readability
Syntax Highlighting
Color-coded keywords, strings, numbers, and comments for easy scanning
Custom Indentation
Choose 2-space, 4-space, or tab indentation for your preferred code style
CTE Formatting
Properly format Common Table Expressions (WITH clauses) with nested queries
JOIN Alignment
Align JOIN clauses, ON conditions, and WHERE filters for clarity
Comment Preservation
Maintain inline and block comments while formatting query structure
Copy & Download
Copy formatted SQL to clipboard or download as .sql file instantly
Large Query Support
Handle complex queries with hundreds of lines without performance issues
How to Use the SQL Formatter
Paste SQL Query
Copy your unformatted, minified, or messy SQL query and paste it into the input area
Select SQL Dialect
Choose your database type (MySQL, PostgreSQL, Oracle, etc.) for dialect-specific formatting
Format Query
Click 'Format' to beautify the SQL with proper indentation, spacing, and keyword alignment
Copy or Download
Copy the formatted SQL to clipboard or download as a file for your database work
Frequently Asked Questions
What is SQL formatting and why is it important?
SQL formatting (beautifying) adds proper indentation, line breaks, keyword capitalization, and spacing to SQL queries to make them human-readable. While databases execute formatted and unformatted SQL the same way, formatted SQL is essential for developers to understand query logic, debug issues, identify performance problems, and maintain code. Well-formatted SQL shows the relationship between SELECT clauses, JOINs, WHERE conditions, and subqueries clearly.
Does this formatter support all SQL dialects?
Yes! The formatter supports major SQL dialects including MySQL, PostgreSQL, Oracle PL/SQL, Microsoft SQL Server (T-SQL), SQLite, MariaDB, and standard ANSI SQL. While most SQL is similar across databases, dialect-specific features like PostgreSQL's RETURNING clause or SQL Server's TOP keyword are handled correctly.
Can it format complex queries with subqueries and CTEs?
Absolutely! The formatter excels at complex SQL with nested subqueries, Common Table Expressions (CTEs with WITH clauses), multiple JOINs, UNION statements, window functions, and CASE expressions. It properly indents nested SELECT statements to show query hierarchy clearly.
Will it change the logic or execution of my SQL?
No! The formatter only adds whitespace, indentation, and capitalization. It never modifies the actual SQL logic, keywords, table names, column names, or query structure. The formatted SQL executes identically to the original - it's just more readable for humans.
Does it work with SQL stored procedures and functions?
Yes! The formatter handles stored procedures, functions, triggers, and complex PL/SQL or T-SQL blocks with BEGIN/END statements, loops, conditionals, and exception handling. It properly indents procedural code for readability.
Is this SQL formatter free?
Yes! Our SQL formatter is completely free to use with unlimited query formatting and no registration required.
Will my SQL queries be stored or sent to a server?
No. All SQL formatting happens entirely in your browser using JavaScript. Your queries are never uploaded to our servers, stored in databases, logged, or transmitted anywhere. This is crucial when formatting SQL containing sensitive data, production database queries, or proprietary business logic. Completely private and secure.
Does it work on mobile devices?
Yes! The SQL formatter is fully responsive and works perfectly on smartphones and tablets for formatting queries on the go.
Common Use Cases
- ORM Query Debugging: Format SQL generated by ORMs like Hibernate, Entity Framework, or Django ORM for debugging
- Log File Analysis: Beautify SQL queries from application logs to understand database operations
- Code Review: Format SQL before code reviews to ensure queries are readable and follow standards
- Documentation: Create readable SQL examples for technical documentation and developer guides
- Migration Scripts: Format database migration SQL scripts for version control and team collaboration
- Query Optimization: Analyze complex queries by formatting them to identify inefficient joins and subqueries
- Learning & Teaching: Format SQL examples for tutorials, courses, and educational materials
- Legacy Code Maintenance: Beautify old, unformatted SQL queries to understand and refactor legacy databases
Why Use Our SQL Formatter?
Debugging one-line SQL queries with dozens of joins, subqueries, and conditions is nearly impossible without proper formatting. ORM-generated SQL and queries from application logs are often minified or poorly formatted, making it hard to understand what the database is actually doing. Our free SQL formatter instantly transforms unreadable SQL into beautifully indented, properly structured queries that reveal the logic at a glance. Whether you're optimizing slow queries, debugging N+1 problems, reviewing code, or just trying to understand what a complex query does, you'll appreciate the instant formatting, dialect support, and complete privacy. No more manually adding line breaks or struggling with nested subqueries - just paste and understand your SQL immediately.