SQL

SQL Formatter

Format and beautify SQL queries with proper indentation

Dialect

Keywords

Commas

Indent

SQL Query

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What is SQL Formatter?

Free online sql formatter to format messy or minified SQL queries into clean, readable code with proper indentation and syntax highlighting.

The tool supports standard SQL, MySQL, PostgreSQL, SQL Server, and SQLite dialects. Customize indentation size, uppercase keywords, and handle complex queries with subqueries, joins, and CTEs. Essential for database developers and analysts who need to quickly read and debug SQL. All formatting runs client-side - your queries never leave your browser. No signup required.

How to Use SQL Formatter

1Paste your SQL query into the input editor
2Select your SQL dialect and formatting preferences (indentation size, keyword casing)
3Click 'Format' to beautify the query with proper indentation
4Copy the formatted SQL or compare it side by side with the original

Frequently Asked Questions

The formatter supports standard SQL (ANSI), MySQL, PostgreSQL, Microsoft SQL Server (T-SQL), and SQLite. Each dialect may have specific keywords and syntax variations that are handled correctly during formatting.

Yes. The formatter handles complex SQL including nested subqueries, multiple JOIN types (INNER, LEFT, RIGHT, FULL, CROSS), Common Table Expressions (CTEs), UNION/INTERSECT/EXCEPT, CASE statements, and window functions. Each element is properly indented for readability.

No. The formatter only changes whitespace and letter casing (if you enable keyword uppercasing). It never modifies the logic, table names, column names, or values in your query. The formatted query produces identical results to the original.

Yes. All formatting is done locally in your browser. Your SQL queries, which may contain sensitive table names, column data, or business logic, are never sent to any external server.

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