Free Developer Tool
SQL Formatter
Beautify or minify your SQL queries instantly. Format with proper indentation, uppercase keywords, and multi-dialect support. 100% client-side processing - your queries never leave your browser.
Formatting Error
Quick Usage Guide
Beautify vs Minify
Beautify adds proper indentation and line breaks for readability. Minify removes all whitespace and comments for production.
SQL Dialects
Select your database dialect for accurate keyword handling and correct formatting of dialect-specific syntax.
Privacy First
All formatting happens 100% in your browser. Your queries never leave your computer - total privacy guaranteed.
SQL Formatting Basics
Why Format SQL?
Well-formatted SQL queries are easier to read, debug, and maintain. Proper indentation helps visualize query structure, making complex JOINs and subqueries much easier to understand at a glance.
Keyword Conventions
SQL keywords like SELECT,
FROM, WHERE,
and JOIN are commonly written in UPPERCASE
to distinguish them from table and column names.
When to Minify?
Minified SQL is useful for logging, storing queries in configuration files, or sending queries over the network. It removes unnecessary whitespace and comments while preserving functionality.
Dialect Matters
Different databases have unique syntax. MySQL uses backticks for identifiers, PostgreSQL uses double quotes, and SQL Server uses square brackets. Choose the right dialect for accurate formatting.
Common SQL Clauses
| Clause | Purpose | Example |
|---|---|---|
| SELECT | Choose columns to retrieve | SELECT name, email |
| FROM | Specify source table | FROM users |
| WHERE | Filter rows | WHERE active = 1 |
| JOIN | Combine tables | JOIN orders ON users.id = orders.user_id |
| GROUP BY | Aggregate rows | GROUP BY department |
| ORDER BY | Sort results | ORDER BY created_at DESC |
Common Use Cases
Code Reviews
Format SQL queries from pull requests or code reviews. Properly formatted queries make it easier to spot issues and review complex logic during code reviews.
Documentation
Format SQL for documentation, tutorials, or blog posts. Clean, readable queries help readers understand database operations quickly.
Debugging
Beautify minified or poorly formatted queries from logs or error messages. Structured formatting makes it easier to identify and fix query issues.
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