SQL Formatter & Validator

Format, beautify, validate, and minify SQL queries for various databases client-side instantly.

Input Query0 chars · 0 lines
Beautified Query0 chars
Waiting for Input
Data Size:0 B

How the SQL Formatter & Validator Works

The DwellixTools SQL Formatter & Validator is a developer utility designed to clean up messy, compressed, or unformatted database queries. It parses SQL syntax locally in your browser, formats the layout using industry-standard indentation rules, and adjusts the casing of keywords to improve query readability and maintainability.

  1. Paste Your Query: Paste your raw SQL code into the input editor panel.
  2. Choose Your Preferences: Select your specific database dialect, preferred keyword casing (UPPERCASE, lowercase, or preserve), and indentation depth (2 spaces, 4 spaces, or Tabs).
  3. Format & Beautify: Click Format SQL to clean and restructure the query structure, or click Minify SQL to collapse it into a single line for code density optimization.

Supported Database Dialects

This tool supports parsing rules tailored to major relational and analytical database engines, including:

  • Standard SQL: General ANSI SQL configurations suitable for any compliant platform.
  • MySQL: Native parsing configurations for MySQL query structures.
  • PostgreSQL: Dialect styling handling PostgreSQL-specific operators and syntax.
  • SQLite: Optimizations for lightweight embedded SQLite queries.
  • Oracle (PL/SQL): Restructuring options matching Oracle PL/SQL programming blocks.
  • SQL Server (T-SQL): Syntax formatters matching Transact-SQL rules.
  • BigQuery: Formatter tailored for Google Cloud BigQuery statements.
  • MariaDB: Dedicated syntax handling matching MariaDB requirements.

Key Features

  • Real-Time Beautification: Instant structural indentation, clause wrapping, and parameter alignments.
  • Keyword Casing Controls: Standardize keywords (like SELECT, FROM, WHERE, JOIN) into consistent UPPERCASE or lowercase.
  • Comment-Safe Minification: Strip out whitespace and comments to compress production queries without altering functional execution.
  • One-Click Actions: Easily load test templates, copy the formatted query to the clipboard, or download the result as a .sql file.
  • Client-side Privacy: Processes queries locally in your browser — no database credentials, queries, or table definitions are uploaded to our servers.

Frequently Asked Questions (FAQ)

Is my database schema or query data safe?

Yes. All parsing and formatting tasks occur directly inside your web browser using client-side JavaScript. No query text, table structures, or database connection details are sent to, logged by, or stored on any external server.

What is the maximum SQL query size supported?

The tool processes queries of any size (up to multiple megabytes) locally in the client-side JavaScript engine. The maximum performance is bound only by your browser and system memory.