SQL Formatter & Beautifier

1. Paste or type your SQL query into the input area.
2. The formatted SQL appears instantly in the output area.
3. SQL keywords are automatically capitalised and clauses are placed on separate lines.
4. Click "Copy" to copy the formatted SQL to your clipboard.

What is SQL Formatting?

SQL formatting is the process of restructuring SQL queries with consistent indentation, line breaks, and keyword casing to improve readability. Raw or minified SQL can be nearly impossible to understand, especially when queries span dozens of lines with multiple joins, subqueries, and conditions. A properly formatted query reveals its logical structure at a glance, making it easier to spot errors, review changes, and collaborate with team members. This tool automatically capitalizes SQL keywords, places each clause on its own line, and indents sub-clauses for clarity.

How SQL Formatting Works

The formatter tokenizes your SQL input, identifying keywords, identifiers, operators, string literals, and comments. It then applies formatting rules: major clauses like SELECT, FROM, WHERE, JOIN, GROUP BY, ORDER BY, and HAVING are placed on new lines. Conditions connected by AND and OR are indented beneath their parent clause. Parenthesized subqueries receive additional indentation to reflect nesting depth. Keywords are uppercased while table names, column names, and aliases remain unchanged, preserving the original meaning of your query.

Common Use Cases

• Cleaning up queries copied from application logs or database tools
• Preparing SQL for code reviews and pull requests
• Making complex joins and subqueries easier to understand
• Standardizing formatting across a team before committing SQL migrations
• Debugging query logic by visualizing clause structure
• Reformatting minified or auto-generated SQL from ORM tools

SQL Formatting Best Practices

Consistent SQL style makes queries easier to maintain over time. Uppercasing keywords (SELECT, FROM, WHERE) while keeping table and column names in lowercase or their original case is the most widely adopted convention. Placing each selected column on its own line makes it easy to add, remove, or reorder columns. Aligning JOIN clauses vertically helps you see which tables are involved and how they connect. For complex WHERE conditions, putting each condition on a separate line with AND or OR at the start of the line makes the logic easier to trace.

For long queries with Common Table Expressions (CTEs), format each CTE as if it were a standalone query. Use meaningful aliases for tables and subqueries rather than single letters. When writing stored procedures or scripts with multiple statements, separate each statement with a blank line to improve visual scanning.

Need to format other structured data? Try our JSON Formatter for API responses or the XML Formatter for configuration files. You can also validate JSON structure with the JSON Validator.