SQL Formatter

Beautify and format your SQL queries online with indentation and keyword case options.

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SQL Formatter
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Format SQL Open SQL File... Clear Input Sample SQL
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About the SQL Formatter Tool

Untangle complex SQL queries with our free online SQL Formatter and Beautifier. Paste your unstructured SQL code, choose your preferred indentation and keyword casing, and instantly receive clean, readable, and standardized SQL ready for debugging, sharing, or documentation.

Why Format SQL Code?

Formatting SQL isn't just about aesthetics; it significantly improves code clarity and efficiency:

  • Readability Boost: Properly indented clauses (SELECT, FROM, WHERE, JOIN, GROUP BY) make complex logic easy to follow.
  • Easier Debugging: Well-formatted queries make it simpler to spot syntax errors, logic flaws, or missing joins.
  • Consistency Across Teams: A standard format ensures everyone writes and reads SQL the same way, improving collaboration.
  • Maintainability: Clean SQL is much easier to understand and modify weeks or months later.

How to Use This Tool

  • Paste your SQL query (or multiple queries) into the input editor.
  • Alternatively, click "Open SQL File..." to upload a .sql file.
  • Select your desired "Indentation" style (Spaces or Tab).
  • Choose how SQL keywords should be cased ("Preserve", "Uppercase", or "Lowercase") using the "Keyword Case" dropdown.
  • Click the "Format SQL" button.
  • The beautified SQL code appears in the output editor, ready to use.
  • Syntax errors in the input SQL may cause formatting to fail.
  • Use the "Copy SQL" or "Download SQL" buttons to save your result.

This tool uses the powerful sql-formatter library directly in your browser, ensuring your code remains private.

Frequently Asked Questions

What SQL dialects does this formatter support?

This tool uses the `sql-formatter` library, which supports various SQL dialects including standard SQL, MariaDB, MySQL, PostgreSQL, DB2, N1QL, PL/SQL, and more. It attempts to automatically detect the dialect, but formatting might vary slightly based on the specific syntax used.

Is my SQL code processed securely?

Yes. All formatting happens locally in your web browser using JavaScript. Your SQL code is never sent to our servers, ensuring its confidentiality.

Can I customize how keywords (like SELECT, FROM, WHERE) are capitalized?

Yes, use the "Keyword Case" dropdown in the options area. You can choose to preserve the original casing, force all keywords to uppercase (a common standard), or force them to lowercase.

Does this tool validate my SQL syntax?

No, this is primarily a code formatter. While the formatting process might fail if the SQL has significant syntax errors, it does not perform full SQL validation or check for logical errors against a specific database schema. It's designed to beautify syntactically plausible SQL.

Is this SQL formatter free?

Yes, this online SQL formatting tool is completely free to use without any usage limits or required registration.

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