What SQL Formatter does

The formatter reorganizes SQL whitespace and recognized clause keywords for easier review. It never runs a query, connects to a database or claims syntax validity.

How to use it

• Paste a query.
• Select the intended dialect label, keyword case and indentation.
• Choose Format SQL or Compact.
• Review the plain-text output before using it elsewhere.

Practical example

A single-line SELECT with JOIN, WHERE and ORDER BY clauses becomes a readable multi-line statement.

Technical methodology

A conservative token-aware pass protects quoted strings and comments, normalizes whitespace, and separates common clauses. Dialect selection documents intent; it is not a full dialect parser.

Common uses

• Review ad-hoc queries
• Normalize examples for documentation
• Compact SQL for transport
• Compare query structure

Common errors

• Empty SQL input
• Input above 1,000,000 characters
• Expecting formatting to validate database syntax

Security and privacy

SQL remains local plain text. No database driver, network connection, execution engine or eval path exists.

Limitations

Vendor-specific procedural SQL, unusual quoting and deeply nested statements may need a dedicated IDE formatter. Formatting does not prove correctness.