SQL Formatter & Beautifier

Format, indent, and capitalize complex database queries in seconds

Why Use Our Online SQL Beautifier?

Writing and debugging database scripts can be a nightmare when queries span multiple lines with sub-selects and complex joins. Our SQL beautifier online tool instantly reorganizes your queries for maximum readability.

Optimization Feature	Technical Action	Developer Benefit
Pretty Print SQL Query	Injects proper line breaks before major clauses like `SELECT`, `FROM`, and `WHERE`.	Makes long, single-line queries instantly readable.
Keyword Capitalization	Automatically converts reserved SQL keywords to UPPERCASE.	Helps visually distinguish commands from table and column names.
Smart Indentation	Aligns `JOIN`, `ON`, and `AND/OR` conditions with logical spacing.	Crucial to format complex SQL queries safely without missing logic.
Multi-Dialect Support	Applies specific parsing rules for MySQL, PostgreSQL, and T-SQL.	Prevents formatting errors caused by database-specific syntax.

Live Examples: Format Complex SQL Queries

See how a messy string of code is transformed into a highly structured database script.

Example 1: Complex JOIN Formatting

A typical query extracted from application code often lacks formatting. Watch the tool capitalize keywords and break lines logically.

Raw Query Input

select c.name, o.order_date, sum(i.price) as total from customers c inner join orders o on c.id = o.customer_id left join items i on o.id = i.order_id where o.status = 'completed' group by c.name, o.order_date having total > 100 order by total desc;

→

Formatted Beautified Output

SELECT
    c.name,
    o.order_date,
    sum(i.price) as total
FROM
    customers c
    INNER JOIN orders o ON c.id = o.customer_id
    LEFT JOIN items i ON o.id = i.order_id
WHERE
    o.status = 'completed'
GROUP BY
    c.name,
    o.order_date
HAVING
    total > 100
ORDER BY
    total desc;

Example 2: Common Table Expressions (CTE)

When dealing with WITH clauses (CTEs), proper indentation is mandatory to understand the scope of the subquery.

Single-line Input

WITH sales_cte AS (SELECT salesperson_id, SUM(amount) as total_sales FROM sales GROUP BY salesperson_id) SELECT e.name, s.total_sales FROM employees e JOIN sales_cte s ON e.id = s.salesperson_id WHERE s.total_sales > 50000;

→

Structured Output

WITH
    sales_cte AS (
        SELECT
            salesperson_id,
            SUM(amount) as total_sales
        FROM
            sales
        GROUP BY
            salesperson_id
    )
SELECT
    e.name,
    s.total_sales
FROM
    employees e
    JOIN sales_cte s ON e.id = s.salesperson_id
WHERE
    s.total_sales > 50000;

Frequently Asked Questions

What is an online SQL formatter?

An online SQL formatter is a developer tool that takes unreadable, minified, or single-line database scripts and converts them into nicely indented, human-readable code. It is essential for database administrators who need to pretty print SQL queries to debug complex JOINs, CTEs, and Subqueries.

Does this SQL beautifier support MySQL and PostgreSQL?

Yes. Our online SQL beautifier supports multiple database dialects. You can choose to format Standard SQL, MySQL, PostgreSQL, MariaDB, and Microsoft T-SQL directly from the dropdown menu to ensure dialect-specific keywords and operators are capitalized and indented correctly.

How to format complex SQL queries securely?

To format complex SQL queries securely, simply paste your raw database script into our editor. The syntax parsing, tokenizing, and indentation are performed 100% locally in your web browser. No proprietary database structures, table names, or sensitive query logic are ever uploaded to our servers.