SQL Formatter
FreeFormat and beautify SQL queries instantly. Makes messy SQL readable with proper indentation.
Why Format SQL?
SQL queries written by ORMs, query builders, or copied from log files are often minified or inconsistently formatted. Formatted SQL with proper indentation makes it much easier to read the query structure, identify performance issues, and review changes in code reviews.
SQL Formatting Best Practices
- Use uppercase for SQL keywords (SELECT, FROM, WHERE)
- Put each major clause on its own line
- Indent columns and conditions for readability
- Use table aliases consistently
- Add comments to explain complex logic
Frequently Asked Questions
What SQL dialects does this formatter support?
This formatter supports standard SQL syntax that is common across MySQL, PostgreSQL, SQLite, and SQL Server. It handles SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, ALTER TABLE, JOINs, subqueries, and common SQL functions.
Does this formatter change the query logic?
No. The formatter only changes whitespace and keyword casing for readability. The query logic, table names, column names, and values are preserved exactly.
Can I use this for stored procedures or complex queries?
Yes. The formatter handles complex queries with multiple JOINs, subqueries, GROUP BY, HAVING, ORDER BY, and UNION clauses. Extremely complex stored procedures with procedural logic (IF/BEGIN/END blocks) may produce partial formatting.
Are SQL keywords converted to uppercase?
Yes. SQL keywords are normalized to uppercase (SELECT, FROM, WHERE, etc.), which is the conventional style used by most SQL style guides and database tools.
Is my SQL query sent to any server?
No. All formatting happens entirely in your browser with JavaScript. Your SQL queries never leave your machine.