SQL Formatter & Beautifier
Free SQL formatter and beautifier online. Paste your SQL, pick your dialect and style, and get clean readable SQL instantly — 100% client-side, no data sent.
Updated May 2026
How to Format SQL Online
From a messy query to readable SQL in seconds
1. Paste your SQL
Any raw, minified, or messy query into the input panel.
2. Configure the style
Indentation, keyword casing, and comma placement (trailing or leading).
3. Format and copy
Click Beautify or press `Ctrl+Shift+F` — copy the result or download it as `.sql`.
What this SQL formatter does
Multiple dialects, fully configurable style
6+ SQL dialects supported
MySQL, PostgreSQL, SQL Server, SQLite, Oracle, and standard ANSI SQL.
Minify mode
Compresses formatted SQL back into a single line — handy for embedding in config files.
CTEs and window functions
Correctly indents WITH, OVER, PARTITION BY, and correlated subqueries.
100% in your browser
Your queries — including production schemas — never leave your computer.
What formatting reveals
When you'll reach for this tool
The most common scenarios among people who use a SQL formatter
Code reviews
Readable SQL is reviewable SQL — unformatted queries are nearly impossible to diff meaningfully.
Cleaning up ORM output
SQLAlchemy, Hibernate, and ActiveRecord all generate single-line queries — format them before debugging.
Reading legacy queries
Inherited a 300-line stored procedure with zero formatting? Beautify it to understand it in minutes.
SQL inside config files
Minify formatted queries back to one line to embed in YAML, JSON, or .env files.
Common mistakes
Thinking formatting changes behavior
The database engine ignores whitespace, line breaks, and casing — the query executes identically either way.
Mixing styles across a team
Use the formatter as a shared standard so everyone commits SQL that follows the same convention.
Not indenting subqueries
Nested queries should be indented one level inside their parentheses to stay readable at a glance.
Why use this SQL formatter
Handles complex SQL — CTEs, window functions, CASE expressions, correlated subqueries, and multiple JOINs — indenting every nesting level correctly, not just simple SELECT statements.
Supports the major dialects (MySQL, PostgreSQL, SQL Server, Oracle, SQLite, DB2), which matters for teams that work across more than one database engine.
Trailing comma vs. leading comma
Two valid conventions — consistency is what actually matters
Frequently asked questions
A SQL formatter takes unstructured or minified SQL and restructures it with consistent indentation, line breaks, and keyword casing so it's easier to read, review, and maintain. It doesn't change what the query does — only how it looks.
Resources
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