Free SQL Formatter Online
Format SQL queries with proper indentation, capitalize keywords, and clean up messy SQL. Supports MySQL, PostgreSQL, SQL Server, and SQLite dialects. 100% client-side — your queries stay private.
How to Use the SQL Formatter
- Paste your SQL query into the input area above.
- Select the dialect matching your database (Standard SQL, MySQL, PostgreSQL, SQL Server, or SQLite).
- Toggle options like capitalizing keywords and indenting subqueries.
- Click "Format" or let it auto-format as you type.
- Use "Copy" or "Download" to save your formatted query.
Why Use This SQL Formatter
Unformatted SQL queries are hard to read and debug, especially complex ones with multiple JOINs, subqueries, and WHERE clauses. This formatter adds proper indentation and line breaks to make your queries readable.
The dialect-aware formatting ensures keywords specific to your database (like TOP for SQL Server or RETURNING for PostgreSQL) are handled correctly. Keywords are automatically capitalized for consistency.
Frequently Asked Questions
Yes. The formatter properly handles INNER JOIN, LEFT/RIGHT/FULL OUTER JOIN, CROSS JOIN, multiple JOINs, and nested subqueries with correct indentation.
Choose the dialect that matches your database. Standard SQL works for most cases. MySQL, PostgreSQL, SQL Server (T-SQL), and SQLite options handle dialect-specific syntax and keywords.
No. All formatting happens entirely in your browser. Your SQL queries never leave your device.
Use Cases
Query Beautification
Format messy SQL queries with proper indentation and line breaks to make complex database queries readable and maintainable.
Migration Script Formatting
Beautify database migration scripts to ensure consistency and readability across your development team's codebase.
Generated SQL Cleanup
Clean up auto-generated SQL from ORMs, query builders, or AI tools into properly formatted, human-readable queries.
Code Review Formatting
Format SQL for code reviews to ensure queries follow team standards and are easy for peers to review and approve.
Indentation Standardization
Standardize query indentation across your project to maintain consistent code style regardless of who wrote the original SQL.