Pug Formatter

A fast, deterministic formatter for Pug templates used by developers and teams to enforce consistent indentation and style across projects.

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780+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Pug Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

The Pug Formatter Online standardizes Pug templates to a consistent style that teams can rely on across projects. It targets developers, template authors, and build pipelines seeking predictable, readable code.
Conceptually, the tool parses Pug into an internal representation, then rewrites indentation and attribute placement while preserving semantics. It does not execute runtime code or perform validation beyond syntax formatting.
Its value lies in configurable indentation, deterministic output, and support for common Pug constructs such as blocks, mixins, extends, and conditionals. This makes it especially useful for collaborative workflows and automated formatting in CI.
Core features include strict indentation normalization, attribute alignment, comment preservation, and clear error reporting. Use cases span code reviews, onboarding new team members, and automated formatting within pipelines to reduce churn and merge conflicts.

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How to Use

Provide inputs: Paste Pug code into the input area or load a file.
Choose options: Set indentation width (2 or 4 spaces) and whether to wrap long attributes.
Run formatting: Trigger the formatter to produce a cleaned, standardized version.
Review outputs: Copy, download, or integrate formatted code into your repository.
Validate: Run downstream tests or linting to ensure semantic correctness remains intact.

Frequently Asked Questions

Find Quick Answers

What does this tool do to Pug templates?

The tool reformats Pug code to a consistent indentation and attribute layout while preserving the original semantics. It does not execute or evaluate template expressions, and it honors commonly used Pug constructs such as blocks, mixins, and extends.

Can it handle complex Pug features?

Yes. It supports nested blocks, mixins, extends, conditionals, and filters. It preserves comments and allows indentation or attribute wrapping options so teams can align with established style guides.

What inputs and outputs are supported?

Inputs are Pug source code strings or file uploads. Outputs are formatted Pug source strings, ready to copy into a project. It reports syntax errors with line numbers if the input is invalid.

Is it safe for CI workflows?

Yes. The formatter is deterministic, stateless, and side-effect free. It can be integrated into CI pipelines to enforce formatting standards, reducing stylistic diffs in code reviews.

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