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SQL Formatter

Beautify SQL statements, capitalize database keywords, and align queries cleanly.

Interactive Online Utility

SQL Formatter runs 100% locally in your browser sandbox with zero network roundtrips. Load or paste your code directly into the workspace above to format, parse, validate, or generate your output instantly. 

select id, name, created_at from users where status = 'active' group by id order by created_at desc limit 10;
PRO TIP Common Table Expressions (CTEs) vs Subqueries

Use WITH cte_name AS (...) to make complex nested joins readable. In PostgreSQL 12+, CTEs are automatically inlined unless declared WITH cte AS MATERIALIZED (...).

WITH active_users AS (
  SELECT id, email FROM users WHERE active = true
)
SELECT * FROM active_users;

Technical Guide & Overview

SQL Formatter is a dedicated developer utility designed to streamline common workflow tasks with zero installation, instant execution, and complete data privacy.

How It Works Under the Hood

The tool leverages modern browser standards (HTML5, WebAssembly, WebGL, and modern ECMAScript) to execute complex computations directly on your local device CPU and GPU without offloading processing to third-party cloud servers.

Authoritative Specifications & Primary Standards

Official specifications, RFCs, and authoritative open-source repositories for SQL Formatter:

ISO Standard

International ISO standard for relational database Structured Query Language.

GitHub Repository

Open-source JavaScript library for formatting dialect-specific SQL statements.

Zero-Knowledge Client-Side Sandboxing

Privacy First: This tool operates completely inside your browser with zero remote logging or tracking.

Frequently Asked Questions

Q: What database SQL dialects are supported?

It formats standard SQL syntax, which works seamlessly for PostgreSQL, MySQL, SQLite, Oracle, and MS SQL Server.

Q: Does it change keyword cases?

Yes, it automatically standardizes database keywords like SELECT, FROM, WHERE, etc. to uppercase for professional readability.