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SQL Formatter

Online SQL Formatter

SQL Editor

SQL Formatter Description

Format and beautify your SQL queries for better readability. Supports various SQL dialects.

How to use

  1. Paste your unformatted or minified SQL query into the editor.
  2. Choose your SQL dialect (MySQL, PostgreSQL, T-SQL, etc.) if available.
  3. The tool will indent keywords and align clauses for better readability.

Common Scenarios

  • Cleaning up complex, nested queries for code review.
  • Formatting auto-generated SQL from ORMs (like Hibernate or Sequelize).
  • Debugging long SQL scripts by making the structure clear.

Data Structure

The tool parses the SQL string into tokens (keywords, identifiers, literals, operators) and then reconstructs it.

Principles

It uses a SQL lexer and parser to understand the query structure, then applies rule-based formatting to place keywords on new lines.