SQL Formatter

SQL Formatter - Format and Beautify SQL Queries Online

A powerful online SQL formatter and beautifier tool that helps you format, beautify, and minify SQL queries. Features syntax highlighting, uppercase keywords option, and customizable indentation. Perfect for database developers, DBAs, and backend developers.

What is SQL?

SQL (Structured Query Language) is a standard language for managing and manipulating relational databases. SQL is used for:

- Querying data (SELECT statements)
- Inserting data (INSERT)
- Updating data (UPDATE)
- Deleting data (DELETE)
- Creating databases and tables (CREATE)
- Managing permissions (GRANT, REVOKE)
- Database administration

SQL works with popular databases like MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and more. It's essential for any application that uses a relational database.

Why format SQL queries?

Formatting SQL queries provides many benefits:

Readability:
- Makes complex queries easy to understand
- Shows query structure clearly
- Helps identify logic errors
- Makes debugging faster

Maintenance:
- Easier to modify queries
- Simpler code reviews
- Better collaboration in teams
- Consistent style across projects

Performance:
- Easier to optimize when structure is clear
- Can spot inefficient joins or subqueries
- Helps with query analysis

Unformatted:
SELECT users.name,orders.total FROM users INNER JOIN orders ON users.id=orders.user_id WHERE orders.status='completed' ORDER BY orders.total DESC

Formatted:
SELECT
users.name,
orders.total
FROM users
INNER JOIN orders ON users.id = orders.user_id
WHERE orders.status = 'completed'
ORDER BY orders.total DESC

Should SQL keywords be uppercase?

This is a style preference, but uppercase keywords are widely recommended:

Advantages of uppercase keywords:
- SQL keywords stand out from table/column names
- Easier to read and scan queries
- Industry standard in many organizations
- Better distinction between SQL syntax and data
- Most SQL documentation uses uppercase

Example with uppercase (recommended):
SELECT name, email
FROM users
WHERE active = 1

Example with lowercase:
select name, email
from users
where active = 1

While both work identically, uppercase keywords are considered more professional and readable. Many SQL style guides (including those from Oracle, Microsoft, and PostgreSQL documentation) use uppercase keywords.

Does this work with all SQL databases?

Yes! This formatter works with standard SQL that's compatible with:

- MySQL
- PostgreSQL
- SQL Server (T-SQL)
- Oracle (PL/SQL)
- SQLite
- MariaDB
- And other SQL-based databases

The formatter handles:
- Basic SQL statements (SELECT, INSERT, UPDATE, DELETE)
- JOIN operations
- Subqueries
- Common functions (COUNT, SUM, AVG, etc.)
- WHERE, GROUP BY, ORDER BY clauses
- UNION queries

Note: Database-specific extensions (stored procedures, proprietary functions) are formatted as general SQL. For best results with database-specific syntax, consult your database's formatting tools.

Is my SQL safe and private?

Yes, your SQL is completely safe and private. This tool:

- Processes all SQL entirely in your browser
- Does not send any data to our servers
- Does not execute your SQL queries
- Does not connect to any database
- Works offline once loaded

You can safely format SQL containing sensitive data, passwords, or proprietary information. The SQL never leaves your computer.

Key Features

• Format SQL with customizable indentation
• Uppercase keywords option for better readability
• Minify SQL to reduce query size
• Syntax highlighting for keywords, functions, strings, numbers
• Real-time statistics
• Copy/Download/Upload support
• Dark mode
• Works with MySQL, PostgreSQL, SQL Server, Oracle, SQLite
• 100% client-side - no SQL execution
• Mobile-friendly