English (US)

A deterministic code formatter based on Prettier rules, delivering consistent, conflict-free formatting for multiple languages used by developers and teams.

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796+

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 English (US) 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

This tool formats source code using a centralized Prettier-based engine. It accepts code input and a target parser, applies a configured set of formatting rules, and returns the formatted code. It supports JavaScript, TypeScript, JSON, CSS, HTML, and other languages via plugins, enabling consistent style across diverse codebases.
Conceptually, formatting is a deterministic transformation: tokens are parsed, grouped into an abstract syntax tree, and re-emitted with standardized spacing, line breaks, and punctuation. The tool exposes adjustable options such as printWidth, tabWidth, semi, singleQuote, and trailingComma, allowing teams to encode their style preferences. In automation scenarios, it runs in CI or within editor integrations to enforce style on every commit.
Who benefits: development teams seeking stable diffs, code reviews with fewer stylistic comments, and maintenance of large repositories. Unique value lies in its language-agnostic core, plug-in extensibility, and alignment with established Prettier conventions. Core features include multi-language support, configurable formatting rules, deterministic output, and clear diagnostics for parse errors or unsupported inputs.
Use cases include standardizing code after refactors, formatting JSON configuration files, or preparing pull requests for review. The tool prioritizes speed, idempotence, and integration readiness for editors and CI systems.

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How to Use

Provide inputs: paste the code snippet and select the parser, language, and any project-specific options.
Configure options: set printWidth, tabWidth, semi, singleQuote, trailingComma, and endOfLine.
Execute formatting: run the formatter to process the inputs and produce formattedCode.
Review outputs: inspect the formattedCode and diffs if available; verify correctness against project style.
Integrate: commit formatted results or hook the formatter into editor/CI workflows for automatic formatting.

Frequently Asked Questions

Find Quick Answers

What languages are supported?

The formatter supports JavaScript, TypeScript, JSON, CSS, HTML, Markdown, and many others via plugins. The parser determines the valid language configuration and formatting rules used to generate output.

Can I customize formatting rules?

Yes; you can configure printWidth, tabWidth, semi, singleQuote, trailingComma, endOfLine, and add plugins or overrides to tailor the output to your project style.

What happens on parse errors?

If the input cannot be parsed for the chosen parser, the tool returns the original code and provides a diagnostic description of the issue for troubleshooting.

Is this suitable for CI pipelines?

Yes; the formatter produces deterministic, reusable diffs across environments and can be integrated as a pre-commit hook or CI step to enforce style.

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