See all n8n tools
Categories

SQL Formatter

Format and beautify SQL queries for MySQL, PostgreSQL, and SQLite nodes

Examples:

Common Uses

n8n MySQL/PostgreSQL Nodes

Format complex queries before pasting them into n8n database nodes for better readability and debugging.

Code Review

Clean up SQL queries extracted from logs or code for easier review and understanding.

Documentation

Format SQL queries for documentation, wikis, or README files with consistent styling.

Need Help Building n8n Workflows?

FlowEngine makes it easy to create powerful n8n automation workflows with AI assistance.

Try FlowEngine Free

Free Online SQL Formatter & Beautifier

Working with messy, single-line SQL queries is a nightmare. Whether you're debugging a slow query, reviewing code, or building n8n database workflows, unformatted SQL makes everything harder. This free SQL formatter instantly transforms chaotic queries into clean, readable code.

Our SQL beautifier automatically applies consistent formatting rules—proper indentation, keyword capitalization, and logical line breaks—so you can focus on the logic, not the layout.

Common Use Cases

  • n8n Database Nodes - Format queries for MySQL, PostgreSQL, and SQLite nodes for easier debugging
  • Query Optimization - Clean up complex queries to identify performance issues
  • Code Review - Make SQL from logs or minified code readable for review
  • Documentation - Format queries for technical documentation and README files
  • Learning SQL - Better understand query structure with properly formatted code

Formatting Rules Applied

  • Keywords Capitalized - SELECT, FROM, WHERE, JOIN in uppercase for visibility
  • Clause Separation - Each major clause starts on its own line
  • Column Formatting - SELECT columns displayed on separate lines
  • Condition Indentation - AND/OR properly indented under WHERE
  • Subquery Handling - Nested queries get proper indentation depth
  • Join Clarity - JOIN clauses clearly separated with ON conditions

Supported SQL Features

  • SELECT, INSERT, UPDATE, DELETE statements
  • JOINs (INNER, LEFT, RIGHT, FULL, CROSS)
  • Subqueries and CTEs (WITH clause)
  • Window functions (OVER, PARTITION BY, ROW_NUMBER, RANK)
  • CASE WHEN expressions
  • GROUP BY, HAVING, ORDER BY, LIMIT
  • UNION and UNION ALL
  • CREATE TABLE, ALTER TABLE, DROP statements

Why Use This SQL Formatter?

  • 100% Free - No sign-up, no limits, no watermarks
  • Privacy First - All formatting happens in your browser—your SQL never leaves your device
  • Multi-Dialect Support - Works with MySQL, PostgreSQL, SQLite, and standard SQL
  • Real-Time Preview - See formatted output instantly as you type
  • Customizable - Choose your preferred indentation size
  • One-Click Copy - Copy formatted SQL to clipboard instantly