SQL Formatter

Format and beautify SQL queries instantly — supports MySQL, PostgreSQL, SQLite, T-SQL and standard SQL.

What is SQL Formatting?

SQL formatting transforms compact or auto-generated queries into well-indented, consistently capitalized, human-readable code. Consistent SQL formatting is critical for code reviews, debugging, documentation, and team collaboration. This formatter applies industry-standard conventions automatically: uppercase keywords, each major clause on a new line, and consistent indentation for subqueries and joins.

The tool supports all major SQL dialects including MySQL, PostgreSQL, SQLite, Microsoft SQL Server (T-SQL), Oracle, and standard ANSI SQL. It correctly handles complex queries including CTEs (WITH clauses), subqueries, window functions, CASE expressions, and multi-table joins.

Formatting does not change how a query executes — SQL parsers ignore whitespace and keyword case. Only the human-readable presentation changes, making queries easier to read, review, and maintain.

Frequently Asked Questions

Does formatting change how the query executes?
No. SQL formatting only adds whitespace and standardizes keyword case. Both are insignificant to the SQL parser — the query executes identically regardless of formatting style.
Should SQL keywords be uppercase or lowercase?
Most style guides (Google, GitLab, dbt) recommend uppercase keywords (SELECT, FROM, WHERE) to visually distinguish them from table and column names. However, lowercase is equally valid — consistency within a project matters most.
Can I format multiple SQL statements at once?
Yes. Paste multiple statements separated by semicolons — the formatter processes all of them while preserving statement boundaries.
Does this work with stored procedures and DDL?
Yes. The formatter handles DML (SELECT, INSERT, UPDATE, DELETE), DDL (CREATE, ALTER, DROP), and basic procedural SQL with correct indentation of BEGIN/END blocks.

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