MySQL Query Formatter

Format and beautify MySQL queries with proper indentation and keyword highlighting

What Is MySQL Query Formatting?

MySQL query formatting takes a single-line or poorly indented SQL query and restructures it with consistent indentation, keyword capitalization, and line breaks that make the query logic immediately readable. A formatted query places each clause (SELECT, FROM, WHERE, JOIN, GROUP BY, ORDER BY) on its own line, indents column lists and conditions, and aligns JOIN conditions for easy visual parsing.

Formatting is essential for code reviews where reviewers need to quickly understand query logic, debugging sessions where you trace data flow through complex JOINs and subqueries, documentation where queries need to be readable to non-authors, and maintaining query files in version control where consistent formatting produces clean diffs. A well-formatted query can be the difference between spending seconds or hours understanding what it does.

How to Format MySQL Queries

1. Paste your MySQL query into the input editor
2. Select MySQL as the SQL dialect to ensure MySQL-specific syntax is handled correctly
3. Click Format to apply indentation, keyword capitalization, and line breaks
4. Review the formatted query with clear clause separation and aligned conditions
5. Copy the formatted SQL for use in your code, documentation, or database client

Why Use PinusX MySQL Formatter?

PinusX formats your SQL queries with 100% client-side processing. Your database queries — which contain table names, column structures, WHERE conditions, and business logic — never leave your browser. SQL queries can reveal your entire database schema, data relationships, and business rules. In November 2025, jsonformatter.org leaked over 80,000 user credentials processed on their servers. PinusX prevents this by running the SQL formatter entirely in your browser tab. Format your production queries, migration scripts, and analytical queries with complete privacy.

Frequently Asked Questions

Does the formatter handle MySQL-specific syntax?

Yes. The formatter recognizes MySQL-specific features including backtick-quoted identifiers (`table_name`), IF() and IFNULL() functions, GROUP_CONCAT(), ON DUPLICATE KEY UPDATE, INSERT IGNORE, STRAIGHT_JOIN, and MySQL-specific data types. It will not incorrectly reformat MySQL-specific syntax as if it were standard SQL.

Can it format stored procedures and triggers?

Yes. The formatter handles MySQL stored procedures (CREATE PROCEDURE), functions (CREATE FUNCTION), triggers (CREATE TRIGGER), and events. BEGIN...END blocks, IF/ELSE, WHILE loops, CURSOR declarations, and other procedural constructs are indented correctly with proper nesting.

Does formatting change query behavior?

No. Formatting only changes whitespace and capitalization. The query logic, execution plan, and results remain identical. SQL ignores whitespace, so adding indentation and line breaks has zero effect on how the database processes the query.

How does it handle subqueries?

Subqueries are indented relative to their parent query, with each nested level increasing indentation. This makes it easy to visually trace the query hierarchy, especially with correlated subqueries and multiple nesting levels. CTE (WITH clause) expressions are also formatted with clear structure.

Your data never leaves your browser. 100% client-side processing.