MySQL Query Formatter Online
Format messy MySQL queries into clean, readable SQL instantly. This tool indents keywords, aligns clauses, and structures your MySQL queries — all client-side with no data sent to a server.
SQL Formatter & Beautifier
Format, beautify, and minify SQL queries instantly. Supports SELECT, INSERT, UPDATE, DELETE, CREATE, and more.
About SQL Formatting
This tool formats SQL queries for readability by placing major clauses on new lines and applying consistent indentation. It supports standard SQL syntax including SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, subqueries, JOINs, CASE expressions, and more.
Keyword casing: Choose UPPER, lower, or preserve original casing for SQL keywords. UPPER is the most common convention for readability.
Minify: Removes all unnecessary whitespace and comments, producing compact single-line SQL. Useful for logging, URLs, or reducing payload size.
Supported features: String literals (single/double quotes), backtick-quoted identifiers (MySQL), multi-word keywords (LEFT JOIN, ORDER BY, GROUP BY), inline/block comments, CASE/WHEN expressions, and subqueries with proper parenthesis indentation.
What is MySQL query formatting?
MySQL query formatting applies consistent indentation and line breaks to SQL statements, making them easier to read and debug. It capitalizes keywords like SELECT, FROM, WHERE, and JOIN while properly indenting subqueries and nested conditions. Well-formatted SQL is critical for code reviews, documentation, and maintaining complex database logic.
Common use cases
Database developers format MySQL queries when debugging slow queries from logs, preparing SQL for code reviews, or documenting stored procedures. It is also invaluable when working with ORM-generated queries that are output as single-line strings, making them nearly impossible to read without formatting.
Frequently Asked Questions
Does formatting change how my MySQL query executes?
No. SQL formatting only affects whitespace and line breaks. The query optimizer receives the same logical query regardless of formatting, so performance is identical.
Does this tool support MySQL-specific syntax like LIMIT and backtick identifiers?
Yes. The formatter recognizes MySQL-specific syntax including backtick-quoted identifiers, LIMIT clauses, ON DUPLICATE KEY UPDATE, and other MySQL extensions.