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SQL Formatter

Format SQL queries for readability and consistency.

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Format and beautify SQL queries online

Indents SQL clauses, standardizes keyword capitalization (UPPERCASE), and formats nested subqueries for PostgreSQL, MySQL, SQL Server, and SQLite.

Technical Specifications & Architecture

Technical Standard:
ANSI/ISO/IEC 9075 SQL Standard
Execution Environment:
100% Client-Side Browser Sandbox
Data Privacy:
Zero Server Storage / No Tracking
Processing Speed:
Real-time local CPU execution
Cross-Platform:
Works on Windows, macOS, Linux, iOS & Android

Code Beautification & Indentation Mechanics

The formatter tokenizes your source code into keywords, operators, strings, comments, and blocks. It normalizes indentation depth, enforces consistent spacing around operators, aligns nested braces and brackets, and wraps long expressions to conform with standard language style guides. This eliminates formatting inconsistencies, simplifies team pull requests, and highlights syntax errors before execution.

1

Provide Input

Enter, paste, or upload your data into the input field above.

2

Configure & Process

The tool immediately processes your input in real time according to your chosen settings.

3

Copy or Save

Use the Copy button to copy the output to your clipboard, or download the result to your device.

Developer Note: Formatters preserve the functional execution of your code while strictly standardizing visual structure and whitespace indentation.
SQL Formatter – Free Online Tool Screenshot
SQL Formatter interface preview

Technical Reference & Standards

SQL Keyword Capitalization & Readability Conventions

Standardizing SQL keywords (SELECT, FROM, WHERE, JOIN, GROUP BY, ORDER BY, HAVING) to UPPERCASE while maintaining table and column identifiers in lowercase or snake_case dramatically clarifies relational query structure. It visually separates query operations from database schema entities.

Formatting Complex Joins, CTEs & Subqueries

Complex analytical queries with Common Table Expressions (WITH clauses), multiple LEFT JOINs, and CASE WHEN logic are error-prone when squashed into dense strings. The formatter introduces consistent soft indentation, breaks SELECT lists onto separate lines, and aligns boolean operators (AND, OR) for effortless code review.

Common Use Cases

  • Beautify complex SQL queries with nested joins, subqueries, and CASE statements
  • Standardize SQL keywords to UPPERCASE for consistent team code review
  • Format SQL dumps and ORM-generated queries for debugging database performance
  • Clean up SQL statements for documentation, tutorials, and reporting

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Frequently Asked Questions

How to format SQL online?
Paste your SQL query in the tool. It will indent keywords, align clauses, and add line breaks. Copy the formatted query for your database or documentation.
Which SQL dialects are supported?
The formatter handles standard SQL and common dialects. Works well with MySQL, PostgreSQL, and SQL Server syntax.