Why should SQL keywords be in UPPERCASE?

Uppercase keywords (SELECT, FROM, WHERE) provide immediate visual contrast between SQL language syntax and custom table or column identifiers, making complex queries faster to parse.

Does formatting alter the query execution logic?

No. The formatter only adjusts whitespace, line breaks, and keyword casing. Query logic, table names, filters, and operators remain completely unchanged.

Can it format multiple queries at once?

Yes. Multiple SQL statements separated by semicolons are formatted with clean spacing between statements.

Is my SQL query transmitted over the network?

No. Query formatting executes 100% client-side inside your browser. No queries, table names, or database details are ever uploaded.

Dev Tools

SQL Formatter

Format and beautify SQL queries with custom indentation and casing.

100% Private & Client-Side Execution

Your SQL queries never leave your computer. Complete privacy for production database queries.

About SQL Formatter

SQL Formatter is an architectural SQL query beautifier engineered for developers, DBAs, and analysts. It reformats unreadable, minified, or disorganized SQL statements into cleanly indented, standardized queries. It supports multiple SQL dialects (Standard SQL, PostgreSQL, MySQL, SQLite, T-SQL, BigQuery, MariaDB, PL/SQL) and customizable keyword casing (UPPERCASE or lowercase).

How to Use SQL Formatter

Paste your raw SQL query into the left editor or click "Load sample".
Choose your target SQL dialect (e.g. PostgreSQL, MySQL, SQLite, BigQuery).
Select your preferred keyword casing (UPPERCASE, lowercase, or preserve original).
Adjust indentation width (2 spaces, 4 spaces, or tabs).
Click "Copy SQL" to copy the formatted code or "Download .sql" to save it as a file.

Common Real-World Use Cases

Database Administrators: Standardize complex multi-table JOINs, subqueries, and CTEs for code reviews.
Backend Developers: Format raw SQL queries copied from application logs, ORM output, or query profilers.
Data Analysts: Clean up messy SQL queries before sharing them in dashboards, documentation, or tickets.
Students & Teachers: Learn clean SQL formatting standards and improve query readability.

Technical Specifications & Limitations

Supports Standard SQL, PostgreSQL, MySQL, SQLite, BigQuery, T-SQL, MariaDB, and Oracle PL/SQL. Handles queries of any length within browser memory.

Frequently Asked Questions

Why should SQL keywords be in UPPERCASE?: Uppercase keywords (SELECT, FROM, WHERE) provide immediate visual contrast between SQL language syntax and custom table or column identifiers, making complex queries faster to parse.
Does formatting alter the query execution logic?: No. The formatter only adjusts whitespace, line breaks, and keyword casing. Query logic, table names, filters, and operators remain completely unchanged.
Can it format multiple queries at once?: Yes. Multiple SQL statements separated by semicolons are formatted with clean spacing between statements.
Is my SQL query transmitted over the network?: No. Query formatting executes 100% client-side inside your browser. No queries, table names, or database details are ever uploaded.