SQL Formatter & Beautifier

A SQL formatter is a tool that takes raw, compressed, or poorly indented SQL queries and restructures them with proper indentation, line breaks, and keyword casing for improved readability. It does not change the logic or behavior of your query -- only its visual presentation. Formatted SQL is easier to review, debug, and maintain, especially for complex queries involving multiple JOINs, subqueries, or CTEs.

This tool supports seven SQL dialects: Standard SQL, MySQL, PostgreSQL, SQLite, SQL Server (T-SQL), Oracle (PL/SQL), and MariaDB. Each dialect has its own syntax nuances, and selecting the correct one ensures the formatter handles dialect-specific keywords and clauses properly.

No. SQL formatting only changes whitespace, indentation, and optionally keyword casing. The actual query logic, table references, conditions, and data operations remain completely unchanged. Your formatted query will produce the exact same results as the original.

Yes, absolutely. This tool processes everything entirely in your browser using JavaScript. No SQL queries are ever sent to any server. Your data never leaves your computer, making it safe for production queries, sensitive data, and proprietary database schemas.

Yes. Toggle the 'Uppercase Keywords' switch to automatically convert all SQL keywords (SELECT, FROM, WHERE, JOIN, etc.) to uppercase while preserving the case of your table names, column names, and string values. This is a widely adopted convention that improves SQL readability.

SQL minification is the process of removing all unnecessary whitespace, comments, and line breaks from a SQL query to reduce its size. This is useful when embedding SQL in application code, sending queries over a network, or storing them in compact formats. The minified query is functionally identical to the original.

Yes. Paste multiple SQL statements separated by semicolons, and the formatter will handle each query individually. You can control the spacing between queries using the 'Lines Between Queries' setting, which defaults to 2 blank lines for clear visual separation.

Yes. The formatter fully supports Common Table Expressions (WITH ... AS), nested subqueries, window functions (OVER, PARTITION BY, ROW_NUMBER), UNION/INTERSECT/EXCEPT operations, and deeply nested conditions. It properly indents each level of nesting for maximum clarity.