What is SQL Formatter?

SQL Formatter is a tool for converting single-line or poorly formatted SQL queries into readable format with indentation and line breaks. Also called SQL Beautifier or SQL Pretty Print.

Long single-line SQL queries are impossible to read and debug. Formatting splits the query into logical blocks: SELECT, FROM, JOIN, WHERE, ORDER BY — each on its own line.

Are all databases supported?

Yes. The formatter works with standard SQL supported by MySQL, PostgreSQL, SQLite, SQL Server, Oracle. Specific syntax (CTEs, window functions) is also formatted.

Should keywords be uppercase?

SQL is case-insensitive — SELECT and select work the same. But uppercase keywords are a common convention that improves readability: keywords are separated from table and column names.

Is it safe to format sensitive queries?

Yes. Formatting is done in the browser. Queries are not sent to the server. You can use it for production queries without concerns.

Does it work with stored procedures?

Partially. The formatter handles DML queries (SELECT, INSERT, UPDATE, DELETE). Complex stored procedures with PL/SQL or T-SQL may need manual adjustments.

How are subqueries formatted?

Subqueries get an additional indent level. This visually highlights nested logic and helps understand the structure of complex queries.

Can I format multiple queries at once?

Yes. Paste multiple queries separated by semicolons. Each query will be formatted separately.

Which indent to choose?

2 or 4 spaces is a matter of preference and team standards. 2 spaces save space, 4 are more visual. Consistency in the project matters more.

How to format SQL in IDE?

VS Code: SQL Formatter or SQLTools extensions. JetBrains IDEs (DataGrip, IntelliJ): built-in formatter (Ctrl+Alt+L). DBeaver: Format SQL (Ctrl+Shift+F).

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SQL Formatter

SQL Formatter

Transform single-line SQL queries into readable format with indentation and line breaks. Automatic keyword uppercasing.

Options

Indent

Number of spaces for indentation

All About SQL Formatting

When you need SQL Formatter

When analyzing slow queries, code review, documenting SQL logic. A 500-character single-line query is unreadable. Formatted one is clear at first glance.

SQL formatting standards

No single standard exists, but there are common practices: uppercase keywords, each JOIN on new line, WHERE conditions indented, commas at start or end of line (depends on team).

SQL in team development

Agree on formatting style in your team. Use linters (sqlfluff, sql-lint) and formatters in CI/CD. Consistent style simplifies code review and reduces merge conflicts.

Optimization through formatting

Formatted SQL is easier to optimize. You see JOIN structure, understand WHERE filtering order, notice redundant subqueries. Readable code is the first step to fast code.

Tools for SQL

IDEs: DataGrip, DBeaver, Azure Data Studio. Formatters: sqlformat, pg_format, sql-formatter-cli. Linters: sqlfluff, sql-lint. Online tools for quick tasks.

How to format SQL

Paste SQL query

Enter SQL in the text field or upload a .sql file. Supports SELECT, INSERT, UPDATE, DELETE and other commands.

Configure options

Choose indent size and keyword case (UPPERCASE or lowercase).

Copy result

Click "Format" and copy the formatted SQL. Each query block will be on a new line.

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