Beautify and format SQL queries instantly online. Supports MySQL, PostgreSQL, T-SQL, and more. Free SQL formatter with proper indentation and keyword casing. No signup required.
SQL queries written quickly for debugging often end up as long, unindented single lines that are hard to read, review, or share with colleagues. The formatter applies consistent indentation, uppercase keywords, and logical line breaks, making complex queries with multiple JOINs, subqueries, and CTEs significantly easier to understand and maintain.
All processing for SQL Formatter runs entirely in your browser. Your data — whether text, files, or other content — is never transmitted to any server. DevToolHub has no backend that receives or stores your inputs. This means the tool works even offline once the page has loaded, and there is no risk of your data being intercepted or stored by a third party.
Will this tool catch errors in my SQL?
This is a formatter, not a validator or linter. It will attempt to format the text you provide, but it will not check for valid syntax, correct table names, or other SQL errors.
Can I customize the formatting rules?
The formatter uses a standard ruleset — uppercase keywords and 2-space indentation. If you need a specific dialect style, copy the output and adjust casing with a find-and-replace in your editor.
Which SQL dialects are supported?
The formatter handles standard SQL and works well with MySQL, PostgreSQL, SQLite, T-SQL for SQL Server, and Oracle SQL. Dialect-specific syntax is preserved as-is.
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