SQL Query Formatter brand-green
Format and optimize SQL queries with support for multiple dialects
Your Data Never Leaves Your Device
Every tool runs entirely in your browser. Nothing you type is uploaded, stored, or logged on our servers.
The SQL Query Formatter is a free, client-side tool that beautifies and optimizes SQL queries with support for multiple database dialects. Format, minify, and validate your SQL with customizable indentation and keyword casing options.
Whether you're working with PostgreSQL, MySQL, BigQuery, SQLite, MariaDB, Amazon Redshift, or Snowflake, this formatter adapts to your dialect's syntax rules. Paste your query, adjust formatting options, and instantly see both human-readable and minified versions. All processing happens locally in your browser—your queries never leave your device.
FAQ
The formatter supports Standard SQL, PostgreSQL, MySQL, BigQuery, SQLite, MariaDB, Amazon Redshift, and Snowflake. Each dialect has slightly different syntax rules and features that the formatter respects.
Yes, you can choose between 1, 2, or 4 spaces for indentation. This helps match your project's coding standards or personal preferences.
You can format SQL keywords in three ways: Uppercase (SELECT, FROM, WHERE), Lowercase (select, from, where), or Preserve (keeps the original case). This helps maintain consistency across your codebase.
Formatted output adds readable indentation and line breaks for better human readability. Minified output removes all unnecessary whitespace to create the most compact version, useful for APIs or storage optimization.
The formatter performs basic validation checks like mismatched parentheses. However, it's not a full SQL validator—it won't catch all syntax errors. Always test your queries in your database before running them.
No, all formatting and validation happens entirely in your browser. Your queries never leave your device, ensuring complete privacy and security.
Yes, the formatter handles complex queries with CTEs, subqueries, JOINs, and nested conditions. It intelligently indents different query sections for maximum readability.
The formatter preserves SQL comments (both -- and /* */ styles) during formatting, so your documentation stays intact.