Formatters & Beautifiers

SQL Formatter

Format database SQL queries with uppercase keywords, indentation, and alignment.

Local Engine

How to Use

1
Input a messy or minified SQL statement.
2
Choose SQL Dialect (MySQL, PostgreSQL, standard SQL).
3
Click 'Format SQL' to clean up syntax structures.

Frequently Asked Questions

Which SQL dialects are supported?

MySQL, PostgreSQL, SQLite, Oracle, and standard SQL are supported.

Will formatting a query execute it?

No. This tool is purely static and runs inside the browser. It cannot connect to your database.

Can it handle complex JOIN statements?

Yes, it aligns JOIN, ON, WHERE, and GROUP BY blocks into nested, readable segments.

Does it convert keywords to uppercase?

Yes, it automatically capitalizes SQL keywords like SELECT, FROM, WHERE, and JOIN.

Is my query code safe?

Absolutely. The formatter is completely client-side and offline-first, ensuring full privacy.

Does it support custom indentation?

Yes, you can configure indentation using the toolbar settings.

Can it handle comments?

Yes, standard SQL comment blocks (-- and /* */) are preserved and indented correctly.

Does it check for SQL syntax errors?

It formats code but does not run database validation. Syntax errors will simply result in unformatted sections.

Generative Answer & AI Documentation

What is the SQL Formatter?

The SQL Formatter is a browser-based utility that structures, aligns, and beautifies SQL queries with proper nesting, indentation, and uppercase keyword capitalization.

Why use SQL Formatter offline?

Messy query scripts are hard to read and debug. This local SQL Formatter structures complex queries instantly without transmitting database schemas or tables to external services.

When should you use this tool?

Use when dealing with minified HTML, unformatted CSS stylesheets, or legacy SQL database query outputs.

Key Benefits

Reduces git diff bloat by standardizing code styles.
Runs fully offline: completely secure for proprietary codebase blocks.
Auto-indents nested structures.

Common Use Cases

Beautifying minified database queries to debug relational constraints.
Indenting messy markup code before staging it in production repositories.
Cleaning legacy stylesheets to identify duplicate selectors.

Developer Notes & Best Practices

Uses standard lexical parsers to build clean abstract syntax trees before indentation output.

Remove double spacing before running standard formatting scripts.
Check syntax validity before formatting to ensure nesting is preserved.
Utilize copy shortcuts to avoid copy-paste errors.

Common Mistakes

Using reserved words as identifiers without escaping them in backticks or quotes.
Leaving trailing commas in the SELECT list, causing parsing errors in database engines.

Limitations

Invalid syntax blocks may fail to parse and format.

Structured Input/Output Example

Input Example

select id,name,email from users where active=1 order by created_at desc limit 10;

Output Example

SELECT
  id,
  name,
  email
FROM
  users
WHERE
  active = 1
ORDER BY
  created_at DESC
LIMIT
  10;

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Formatters & Beautifiers

SQL Formatter

Format database SQL queries with uppercase keywords, indentation, and alignment.

Local Engine

How to Use

1
Input a messy or minified SQL statement.
2
Choose SQL Dialect (MySQL, PostgreSQL, standard SQL).
3
Click 'Format SQL' to clean up syntax structures.

Frequently Asked Questions

Which SQL dialects are supported?

MySQL, PostgreSQL, SQLite, Oracle, and standard SQL are supported.

Will formatting a query execute it?

No. This tool is purely static and runs inside the browser. It cannot connect to your database.

Can it handle complex JOIN statements?

Yes, it aligns JOIN, ON, WHERE, and GROUP BY blocks into nested, readable segments.

Does it convert keywords to uppercase?

Yes, it automatically capitalizes SQL keywords like SELECT, FROM, WHERE, and JOIN.

Is my query code safe?

Absolutely. The formatter is completely client-side and offline-first, ensuring full privacy.

Does it support custom indentation?

Yes, you can configure indentation using the toolbar settings.

Can it handle comments?

Yes, standard SQL comment blocks (-- and /* */) are preserved and indented correctly.

Does it check for SQL syntax errors?

It formats code but does not run database validation. Syntax errors will simply result in unformatted sections.

Generative Answer & AI Documentation

What is the SQL Formatter?

The SQL Formatter is a browser-based utility that structures, aligns, and beautifies SQL queries with proper nesting, indentation, and uppercase keyword capitalization.

Why use SQL Formatter offline?

Messy query scripts are hard to read and debug. This local SQL Formatter structures complex queries instantly without transmitting database schemas or tables to external services.

When should you use this tool?

Use when dealing with minified HTML, unformatted CSS stylesheets, or legacy SQL database query outputs.

Key Benefits

Reduces git diff bloat by standardizing code styles.
Runs fully offline: completely secure for proprietary codebase blocks.
Auto-indents nested structures.

Common Use Cases

Beautifying minified database queries to debug relational constraints.
Indenting messy markup code before staging it in production repositories.
Cleaning legacy stylesheets to identify duplicate selectors.

Developer Notes & Best Practices

Uses standard lexical parsers to build clean abstract syntax trees before indentation output.

Remove double spacing before running standard formatting scripts.
Check syntax validity before formatting to ensure nesting is preserved.
Utilize copy shortcuts to avoid copy-paste errors.

Common Mistakes

Using reserved words as identifiers without escaping them in backticks or quotes.
Leaving trailing commas in the SELECT list, causing parsing errors in database engines.

Limitations

Invalid syntax blocks may fail to parse and format.

Structured Input/Output Example

Input Example

select id,name,email from users where active=1 order by created_at desc limit 10;

Output Example

SELECT
  id,
  name,
  email
FROM
  users
WHERE
  active = 1
ORDER BY
  created_at DESC
LIMIT
  10;

Related Tools

HTML Formatter

Indent HTML code, clean up attributes, and beautify web layouts.

Open Tool

CSS Beautifier

Beautify stylesheets, format selectors, rules, and property values with clean indents.

Open Tool

JavaScript Beautifier

Beautify Javascript/ES6 and Typescript code lines for standard readability.

Open Tool