SQL Formatter
Beautify SQL queries with keyword capitalization.
- Reading time:
- 2 min
- Last updated:
- Price:
- Free, no signup
Type or paste text to see the result.
What the SQL Formatter does
Beautify and indent messy, unformatted SQL queries with standard keyword capitalization and clean line breaks.
Turn dense one-line database queries into readable, professionally formatted SQL in milliseconds.
Why the SQL Formatter is useful
Reading complex SQL queries with multiple JOINs, subqueries, and WHERE clauses compressed onto one line is confusing and error-prone.
Consistent SQL formatting with uppercase keywords and logical indentation makes queries easy to review, optimize, and debug.
Also known as: sql formatter, sql beautifier, free sql formatter, online sql formatter, sql formatter online free, sql formatter tool, best sql formatter tool.
How to use the SQL Formatter
- 1
Paste Raw SQL Query
Enter your unformatted SQL code or ORM-generated query log.
- 2
Format Query
The formatter uppercases standard SQL keywords and structures clauses onto separate indented lines.
- 3
Copy Beautified SQL
Copy the clean SQL for code reviews, database client tools, or documentation.
Key features
- Standardizes keyword capitalization (SELECT, FROM, WHERE, JOIN, GROUP BY)
- Indents subqueries, JOIN conditions, and AND/OR filter clauses logically
- Supports major SQL dialects: MySQL, PostgreSQL, SQLite, SQL Server, and Oracle
- Preserves string literals, table aliases, and comment blocks
Benefits
- Drastically improves query readability during performance tuning and code reviews
- Quickly decipher complex queries generated by ORMs like Prisma, TypeORM, or Hibernate
- Standardizes database code formatting across engineering teams
Real-life use cases
ORM Query Debugging
Take messy raw query logs output by application frameworks and format them for manual execution.
Database Code Reviews
Format migration scripts and stored procedures before submitting pull requests.
Tips for the best results
- Separate major query clauses (FROM, WHERE, ORDER BY) onto dedicated lines for readability.
- Keep column lists in SELECT statements neatly aligned or comma-first formatted.
- Use meaningful table aliases (e.g., 'u' for users) to keep complex JOIN queries concise.
Conclusion
Formatting SQL queries improves clarity, simplifies query optimization, and makes database maintenance faster and more reliable.
Frequently asked questions
Does formatting change query execution or performance?
- No, whitespace and capitalization do not affect how SQL database query engines execute queries.
Which SQL dialects are supported?
- Standard SQL formatting applies seamlessly across PostgreSQL, MySQL, SQLite, MariaDB, and MS SQL.
Are comments inside my SQL preserved?
- Yes, standard single-line (--) and multi-line (/* */) comments remain intact.
Can it format subqueries?
- Yes, subqueries wrapped in parentheses are indented with their own dedicated hierarchy.
Is my query or database schema logged?
- No, all formatting runs client-side in your browser; no queries are saved or sent over the network.
How does it handle strings with reserved keywords?
- Text inside single or double quotes is preserved exactly as typed and never capitalized.
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