Free 100% In-Browser Tool

SQL Formatter: Format, Indent & Beautify SQL Queries

Beautify, indent, and format messy SQL queries with uppercase keyword normalization and clean indentation.

Quick Answer:Paste your raw or minified SQL query into the editor. The tool automatically uppercases keywords and indents clauses. Copy the beautified query with one click.

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How to Use the SQL Formatter: Beautify & Format SQL Queries Online

1Paste your raw, minified, or messy SQL query into the left textarea.
2Select your preferred indentation spacing (2 spaces or 4 spaces).
3Inspect the beautified, indented SQL code in the formatted output box.
4Click 'Copy SQL' to paste into your database IDE (DBeaver, DataGrip, pgAdmin, SSMS).

Formula & How It Works

SQL Clause Tokenization & Lexical Grammar

Formatted_SQL = Tokenize(SQL) -> Normalize_Keywords() -> Align_Clauses(Indent)

Identifies standard ANSI SQL reserved words and inserts clause line breaks and indentation hierarchies. Source: ISO/IEC 9075:2023 Database Language SQL.

Worked Examples

Minified Single-Line SELECT Query

Input: select id, name, email from users where active = 1 order by created_at desc;

Explanation: Adds line breaks before major clauses and capitalizes keywords.

Result: SELECT id, name, email FROM users WHERE active = 1 ORDER BY created_at desc;

Query with Multi-Clause JOINs

Input: select o.id, c.name from orders o left join customers c on o.cust_id = c.id where o.total > 100;

Explanation: Indents and aligns JOIN clauses cleanly.

Result: SELECT o.id, c.name FROM orders o LEFT JOIN customers c ON o.cust_id = c.id WHERE o.total > 100;

Complex WHERE Logic with AND / OR

Input: select * from products where price > 50 and in_stock = 1 or featured = 1;

Explanation: Indents boolean conditions under the WHERE clause.

Result: SELECT * FROM products WHERE price > 50 AND in_stock = 1 OR featured = 1;

Frequently Asked Questions

Which SQL dialects are supported by this formatter?▼

The formatter supports standard ANSI SQL syntax, making it compatible with PostgreSQL, MySQL, SQLite, Microsoft SQL Server, MariaDB, and Oracle.

Is my SQL query or database schema uploaded to a server?▼

No. The formatting engine runs 100% in your local browser JavaScript. Your table names, schemas, and queries never leave your device.

Can this formatter handle minified SQL queries?▼

Yes, it safely expands single-line and compressed SQL queries into neatly indented multi-line statements.

Can I choose between 2-space and 4-space indentation?▼

Yes, use the indentation toggle buttons at the top of the editor to switch between 2 spaces and 4 spaces.

Does it preserve string literals and comments?▼

Yes, text inside quotes and parameter values are preserved without alteration.

Can I format subqueries and nested SELECT statements?▼

Yes, subqueries and nested clauses are formatted with proper hierarchical spacing.

Quick Reference & Conversion Table

SQL Keyword Category	Key Clauses Formatted	Formatting Action
Data Retrieval	SELECT, DISTINCT, TOP, FROM	Line break + capital uppercase
Filtering & Logic	WHERE, AND, OR, IN, BETWEEN, LIKE	Line break + 2-space indented criteria
Table Joins	JOIN, LEFT JOIN, RIGHT JOIN, INNER JOIN	Line break + clause alignment
Aggregation	GROUP BY, HAVING, ORDER BY	Dedicated clause line break
Data Modification	INSERT INTO, VALUES, UPDATE, SET, DELETE	Standardized DML layout

⚠️ Common Pitfalls to Avoid

•Leaving keywords in mixed case (e.g. sEleCt ... FrOm), which looks sloppy in team pull requests.
•Writing 500-character single-line SQL queries that are impossible to code review or debug.
•Using online formatters that send proprietary company table structures and schemas over the internet.

💡 Practical Real-World Uses

•Beautifying raw SQL query logs captured from application ORMs (Prisma, TypeORM, Hibernate).
•Formatting complex analytical queries before sharing in GitHub pull requests or Slack.
•Cleaning database migration scripts before committing to version control.

Last reviewed & updated: 2026-11-07

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