#091 · Database Developer Tool

SQL Query Formatter

Format unstructured SQL into readable, consistently indented queries directly in your browser. Choose a dialect, keyword case, indentation size, and comma style, then copy or download production-ready SQL without sending database code to a server.

Developer Input

SQL formatting options

SQL query

SELECT u.id,u.name,COUNT(o.id) AS orders FROM users u LEFT JOIN orders o ON o.user_id=u.id WHERE u.active=1 GROUP BY u.id,u.name ORDER BY orders DESC;

SQL dialect

Indent size

Spaces

Trim outer whitespace Preserve blank lines Uppercase SQL keywords Auto-run while typing

How to use this developer tool

Paste or type the source content in the main editor.
Choose the processing mode and adjust the tool-specific option.
Enable or disable the validation and live-processing options as needed.
Select the primary action, review the report and statistics, then copy or download the result.

What this developer tool does

Format SQL queries online with configurable keyword case, indentation, comma style, comment preservation, query statistics, and practical warnings.

Tokenize SQL → normalize keywords → apply clause indentation → preserve strings and comments → generate warnings.

All processing occurs locally in the browser. Review automated findings before using the result in production.

Example

The editor is preloaded with a working SQL Query Formatter example. Change the sample, select an option, and run the tool to compare the input with the generated output and report.

Tips for better output

Select the closest SQL dialect before formatting.
Review warnings separately from formatting output.
Test formatted queries in a safe development environment.

FAQ

How do I format a long SQL query automatically?

Paste the SQL query, choose the SQL dialect and formatting options, and select Format SQL. The output is reformatted locally in the browser.

Can this SQL formatter handle MySQL and PostgreSQL queries?

Yes. It includes dialect presets for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and general ANSI SQL formatting.

Does the SQL formatter preserve comments?

The formatter keeps line and block comments while normalizing surrounding whitespace and indentation.

How do I uppercase SQL keywords without changing table names?

Choose the uppercase keyword setting. Recognized SQL keywords are changed while identifiers and string literals remain untouched.

Can I download the formatted SQL as a .sql file?

Yes. The Download button saves the current formatted result using a .sql extension.

Related developer tools

SQL Beautifier JSON Diff Checker JSON Compare JSON Escape

SQL Query Formatter modules

Module	Details
Formatter	Token-aware indentation
Dialects	ANSI, MySQL, PostgreSQL, SQL Server, Oracle, SQLite
Warnings	SELECT *, missing WHERE, possible Cartesian joins
Download	.sql

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