Free Online SQL Formatter & Beautifier

What is SQL Formatter?

SQL Formatter is a free online tool that transforms messy, unformatted, or complex SQL queries into clean, readable code. It adds proper indentation, line breaks, and consistent formatting to make your SQL statements easy to understand, debug, and maintain.

Why Would You Need to Format SQL?

• Debug complex queries: Long, single-line SQL queries are nearly impossible to debug. Formatting reveals the query structure clearly.
• Improve query readability: Well-formatted SQL is easier to scan and understand, especially for complex JOINs and subqueries.
• Collaborate effectively: Formatted SQL makes code reviews and team collaboration much more efficient.
• Learn SQL patterns: When analyzing database queries, formatting helps you understand the logic and structure being used.
• Document queries properly: Clean, formatted SQL is essential for proper documentation and knowledge sharing.

How to Format SQL - Step by Step

1. Paste your SQL: Copy your messy or minified SQL query and paste it into the input area above.
2. Configure options: Select your preferred indentation style, keyword casing, and other formatting preferences.
3. Click Format: Press the format button to instantly beautify your SQL query.
4. Copy the result: Use the copy button to grab your formatted SQL for use in your database client or application.

Key Features

• Multi-dialect support: Works with MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and standard SQL syntax.
• Smart indentation: Properly indents subqueries, JOINs, CASE statements, and nested conditions.
• Keyword formatting: Optionally converts keywords to uppercase or lowercase for consistent styling.
• Preserves functionality: Only changes formatting without altering your SQL logic or query results.
• Browser-based processing: All formatting happens locally in your browser for privacy and security.

Tips for Best Results

• Ensure your SQL has valid syntax before formatting for the best output.
• Use consistent keyword casing (uppercase is the SQL convention) across your queries.
• Consider breaking very complex queries into smaller, documented CTEs for better maintainability.

Frequently Asked Questions

Does formatting SQL change how the query executes?

No, formatting only adds whitespace and changes keyword casing. The SQL will execute exactly the same way and return identical results.

Which SQL dialects are supported?

The formatter supports standard SQL and is compatible with MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and most other database systems.

Can I format stored procedures and functions?

Yes, the SQL Formatter handles stored procedures, functions, triggers, and other complex SQL objects, properly formatting the internal SQL statements.