CodeItBro

C/C++ Formatter

Format and beautify your C/C++ code with customizable brace styles and indentation. Clean up messy code instantly.

Formatting Options
Input Code
Formatted Output

Beautify Your C/C++ Code

Transform messy, inconsistent code into clean, readable source files. Our C Formatter applies consistent styling with support for K&R, Allman, and GNU brace conventions.

Why Use This Tool?

Multiple Brace Styles

Support for K&R, Allman, and GNU conventions. Match your team's coding standards perfectly.

Flexible Indentation

Choose between 2 spaces, 4 spaces, or tabs. Customize to match project requirements.

Preserves Content

Comments and string literals remain untouched. Only formatting changes, never your logic.

100% Client-Side

Your code never leaves your browser. Safe for proprietary and sensitive source files.

How this C/C++ Formatter works

This code formatting tool beautifies C and C++ source code by analyzing token structure and applying consistent indentation, spacing, and brace placement rules. The parser tokenizes input code into keywords, operators, identifiers, literals, and comments, then reconstructs the output with proper formatting based on user-selected style preferences.

Users can choose from multiple brace styles including K&R (opening brace on same line), Allman (opening brace on new line), and GNU (opening brace indented on new line). Indentation options support 2-space, 4-space, or tab characters. The formatter preserves comment blocks and string literals exactly as written while restructuring the surrounding code for improved readability.

The tool handles common C/C++ constructs including if/else chains, for/while loops, switch statements, function declarations, struct definitions, and preprocessor directives. Processing runs entirely in your browser through client-side JavaScript, making it safe for proprietary code that cannot be uploaded to external servers. The output can be copied or downloaded as a .c or .cpp file.

How to Use

1

Paste Your Code

Enter or upload your C/C++ source code.

2

Choose Style

Select brace style, indentation, and other formatting options.

3

Get Formatted Code

Copy or download the beautified code instantly.

Example Usage

Formatting a condensed if statement:

Input
if(x==1){return true;}
Output
if (x == 1) { return true; }

Frequently Asked Questions

What brace styles are supported?
K&R (opening brace on same line), Allman (opening brace on new line), and GNU (opening brace indented on new line). Choose the style that matches your project's coding standards.
Can I format C++ code too?
Yes! The formatter works with both C and C++ code. It handles common constructs like classes, templates, and namespaces.
Does it preserve comments?
Yes. Both single-line (//) and multi-line (/* */) comments are preserved exactly as written while the surrounding code is formatted.
Is my code secure?
Absolutely. All formatting happens locally in your browser. Your code is never uploaded to any server, making it safe for proprietary or sensitive code.
What about string literals?
String literals (both single and double-quoted) are preserved exactly as written. The formatter never modifies content inside strings.

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The C Formatter and Beautifier is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.