SQL Formatter & Beautifier — Free Online Tool

Last updated: 2026-03-19

You inherited a 200-line SQL query written as one continuous line. No indentation, no line breaks, aliases like "t1" and "t2". Understanding it will take an hour. Formatting it takes 2 seconds.

What Our Formatter Does

Feature	Before	After
Indentation	Everything on one line	Proper nesting with 2/4 space indent
Keyword casing	select, SELECT, Select mixed	Consistent UPPERCASE or lowercase
Line breaks	None	Each clause on its own line
Comma placement	Trailing commas	Leading or trailing (your choice)
JOIN alignment	Inline with everything else	JOINs indented under FROM

Dialect Support

MySQL — backtick identifiers, LIMIT syntax, AUTO_INCREMENT
PostgreSQL — double-quote identifiers, RETURNING, CTEs
SQL Server — square bracket identifiers, TOP, NOLOCK hints
Oracle — ROWNUM, CONNECT BY, PL/SQL blocks
SQLite — simplified syntax, AUTOINCREMENT

Why Formatting Matters

Formatted SQL is not just prettier — it is debuggable. When a query returns wrong results, you need to read it. When a query is slow, you need to understand the join structure. When a colleague reviews your query, they need to follow the logic. All of this requires readable formatting.

Format your SQL — instant, free, multiple dialects.

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According to Google SQL Style Guide, consistent formatting improves readability and maintainability of SQL code.

As SQL Style Guide by Simon Holywell recommends, keywords should be uppercase and each major clause should start on a new line.