browserutils

C/C++ Formatter

Beautify and format C and C++ code

C/C++ Formatter is a free online tool from BrowserUtils that beautify and format c and c++ code. It runs entirely in your browser — your data never leaves your device. No account required.

How to use C/C++ Formatter

  1. 1 Paste or type your input into the editor above.
  2. 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
  3. 3 Copy the result with one click or continue editing your input.

About C/C++ Formatter

Free online C/C++ code formatter. Format C and C++ source code with configurable indentation, brace style, and preprocessor handling. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.

C/C++ Formatter specs

Runtime
100% client-side (browser)
Cost
Free — no account, no rate limits, no usage caps
Browser support
Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
Part of
299 developer tools on BrowserUtils (100% client-side)

Questions

What brace styles are supported?
Choose between K&R style (same-line braces) or Allman style (new-line braces). Preprocessor directives are kept at column 0 regardless of indentation level.
Does it handle preprocessor directives?
Yes, #include, #define, #ifdef, and other preprocessor directives are recognized and kept unindented at the start of the line, following C/C++ conventions.
Can I format C++ templates and lambda expressions?
Yes, the formatter handles C++ templates, lambda expressions, range-based for loops, auto declarations, and other modern C++ features.
Does the C/C++ formatter work with both C and C++ code?
Yes, the formatter supports both C and C++ syntax. C-specific code and C++ features like classes, namespaces, and operator overloads are all formatted correctly.
Embed this tool

Copy this code to embed the tool on your website. Adjust the height to fit your layout.

<iframe src="https://www.browserutils.dev/embed/cpp-formatter" width="100%" height="500" frameborder="0" title="C/C++ Formatter"></iframe>

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