Code Formatter

A developer-focused tool that formats source code according to language-specific style rules and exports the formatted result as a downloadable file.

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1,088+
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 Code 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 tool formats source code according to language-specific style rules and exports a clean, ready-to-use version. It accepts code as text or a file, plus lightweight configuration, and targets developers, code reviewers, and teams that require consistent formatting before commits or pull requests.
Conceptually, a language-aware formatter parses the input into tokens or an AST, applies indentation, wrapping, and spacing rules, and re-emits the code in the chosen style. It supports major languages (Python, JavaScript, Java, C++, Go) with profiles like PEP8, Google Java Style, or custom settings. The value lies in predictable, repeatable formatting that reduces review cycles and diff noise.
Benefits include improved readability, easier onboarding for new contributors, and CI-friendly automation. Core features cover language awareness, adjustable line width, indent size, end-of-line normalization, and the option to preserve or adjust comments. The tool can be used in pre-commit hooks, PR checks, or as a standalone formatter before sharing code.
Use cases include multi-language repos, codebase standardization, and education or mentorship scenarios where consistent style accelerates learning and collaboration.

How to Use

  1. Provide inputs: paste code or upload a file, select language and a default style profile.
  2. Configure options: set indent_size, line_width, and end_of_line.
  3. Run formatting: execute the formatter to generate a formatted code version.
  4. Review outputs: inspect the formatted code and any diagnostics.
  5. Download formatted code: export the result as a downloadable file.
How to use code formatter download

Frequently Asked Questions

Find Quick Answers

Which languages are supported?
The formatter supports Python, JavaScript, Java, C++, Go, Ruby, and several other popular languages. Each language uses a dedicated formatter backend with established style rules, and users can select a profile or supply custom settings.
What happens with syntax errors?
If the input contains syntax errors, the formatter performs best-effort formatting for correctly parsable regions and reports diagnostics for problematic areas. It preserves as much structure as possible while avoiding destructive changes to broken segments.
Can I export to different line endings or file formats?
Yes. The tool allows end_of_line normalization (LF or CRLF) and can export the formatted code as a plain text file in the original or chosen line-ending format, suitable for integration with version control workflows.

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