What is SQL formatting?

SQL formatting transforms SQL code into a readable, consistent style with proper indentation, line breaks, and keyword capitalization. Well-formatted SQL is easier to read, debug, and maintain. Formatting does not change query functionality—only its visual presentation.

What SQL dialects are supported?

This formatter supports Standard SQL, MySQL, PostgreSQL, SQLite, MariaDB, SQL Server (T-SQL), and Oracle (PL/SQL). Each dialect has unique syntax and keywords. Select the matching dialect for best results, or use Standard SQL for generic queries.

Should SQL keywords be uppercase or lowercase?

SQL keywords are case-insensitive, so SELECT and select work the same. However, using UPPERCASE keywords (SELECT, FROM, WHERE) is a common convention that improves readability by distinguishing keywords from table/column names. Most style guides recommend uppercase keywords.

What is SQL minification?

SQL minification removes unnecessary whitespace, line breaks, and formatting to create compact single-line queries. Minified SQL uses less storage space and bandwidth. However, minified code is harder to read—use it only for production deployment, not development.

Does formatting SQL affect query performance?

No, SQL formatting has zero impact on query performance. The database engine parses and executes the query the same way regardless of whitespace or capitalization. Formatting is purely for human readability and code maintainability.

How do I format complex SQL with subqueries?

The formatter automatically handles complex SQL including subqueries, CTEs (Common Table Expressions), window functions, and nested JOINs. Each subquery is indented within parentheses, making the query structure clear and easy to follow.

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SQL Formatter & Beautifier

SQL formatter transforms SQL code into readable, consistent style with proper indentation. It supports multiple dialects (MySQL, PostgreSQL, SQLite, T-SQL, PL/SQL). Minify mode creates compact single-line queries. Formatting does not affect query execution—only visual presentation. Use UPPERCASE keywords for best readability.

Format, beautify, and minify SQL queries online. Supports MySQL, PostgreSQL, SQLite, SQL Server, and Oracle dialects. Syntax highlighting and uppercase keywords option.

Works OfflineDark ModeNo Ads

SQL Input

1 lines, 0 chars

Dialect:Indent:Uppercase keywords

How to Use

1
Paste your SQL query
Enter or paste SQL code into the input text area, or click Sample to load an example
2
Select dialect
Choose your SQL dialect: Standard SQL, MySQL, PostgreSQL, SQLite, MariaDB, SQL Server, or Oracle
3
Choose format or minify
Click Format for readable indented code, or Minify to create a compact single-line query
4
Adjust formatting options
Set indent size (2 or 4 spaces) and toggle uppercase keywords for consistent style
5
Copy formatted SQL
Click the Copy button to copy the formatted or minified SQL to your clipboard

Frequently Asked Questions

What is SQL formatting?: SQL formatting transforms SQL code into a readable, consistent style with proper indentation, line breaks, and keyword capitalization. Well-formatted SQL is easier to read, debug, and maintain. Formatting does not change query functionality—only its visual presentation.
What SQL dialects are supported?: This formatter supports Standard SQL, MySQL, PostgreSQL, SQLite, MariaDB, SQL Server (T-SQL), and Oracle (PL/SQL). Each dialect has unique syntax and keywords. Select the matching dialect for best results, or use Standard SQL for generic queries.
Should SQL keywords be uppercase or lowercase?: SQL keywords are case-insensitive, so SELECT and select work the same. However, using UPPERCASE keywords (SELECT, FROM, WHERE) is a common convention that improves readability by distinguishing keywords from table/column names. Most style guides recommend uppercase keywords.
What is SQL minification?: SQL minification removes unnecessary whitespace, line breaks, and formatting to create compact single-line queries. Minified SQL uses less storage space and bandwidth. However, minified code is harder to read—use it only for production deployment, not development.
Does formatting SQL affect query performance?: No, SQL formatting has zero impact on query performance. The database engine parses and executes the query the same way regardless of whitespace or capitalization. Formatting is purely for human readability and code maintainability.
How do I format complex SQL with subqueries?: The formatter automatically handles complex SQL including subqueries, CTEs (Common Table Expressions), window functions, and nested JOINs. Each subquery is indented within parentheses, making the query structure clear and easy to follow.

SQL Formatter & Beautifier

SQL Input

How to Use

Frequently Asked Questions

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