Format and beautify SQL queries with custom dialects, indentation, and casing.
1What is a SQL Formatter?
A SQL Formatter is a developer utility that parses dense, unformatted, or minified SQL queries and rewrites them into structured, readable statements. It automatically aligns keywords, columns, clauses (such as SELECT, FROM, WHERE, JOIN), and nested subqueries to improve code readability and maintainability.
2Example: Raw vs Formatted SQL
Input (Raw):
select id,name,email from users where active=1 and role='admin' order by created_at desc limit 10;
Output (Formatted):
SELECT
id,
name,
email
FROM
users
WHERE
active = 1
AND role = 'admin'
ORDER BY
created_at DESC
LIMIT
10;
3Supported SQL Dialects
Our SQL Formatter supports multiple relational database dialects, including:
• Standard SQL: Standard ANSI SQL formatting.
• PostgreSQL: Postgres-specific syntax including JSON operations and type casts.
• MySQL / MariaDB: Backtick quoting, special keywords, and custom syntax.
• SQLite: Standard syntax compatible with SQLite databases.
• Transact-SQL (T-SQL): Microsoft SQL Server query conventions.
• PL/SQL: Oracle-specific DDL, PL/SQL blocks, and packages.
4Keyword Casing & Indentation
Customize formatting output to match your company's style guide. You can enforce UPPERCASE keywords (e.g., SELECT, WHERE), lowercase keywords (e.g., select, where), or preserve original casing. Indentation can be configured to use 2-space, 4-space, or Tab character indentation.
5Minify SQL Queries
In addition to beautifying, you can minify SQL statements. Minification strips single-line and multi-line comments and condenses the SQL query into a single line. This is particularly useful for embedding queries in application configuration files, command-line arguments, or code strings.
6Privacy: Your Queries Never Leave Your Browser
Database queries often contain sensitive schemas, table names, columns, or filter criteria (like proprietary business rules). Because our SQL Formatter runs 100% client-side, your queries are processed locally in your browser's memory. No SQL content is ever sent to a server, logged, or tracked, ensuring compliance with strict data security standards.