Home » Developer Tools » C Formatter
Paste C code and get clean, readable formatting in seconds, right in your browser.
This formatter changes whitespace only. It never compiles, runs, validates, adds, removes, or renames code tokens.
Messy C code with collapsed indentation is hard to read, review and debug. The C Formatter fixes indentation, line breaks and spacing so your code is easy to follow again.
Everything runs in your browser, so your code is never uploaded to a server. Paste your code, format it, and copy the result straight into your project.
Yes, it is completely free with no sign up and no limits. You can format as much C code as you like, as often as you like.
No. It changes whitespace only, meaning indentation, line breaks and spacing. It never adds, removes, renames or reorders code tokens, and it never compiles or runs your code.
No. Text inside string literals, character literals and comments is left untouched, even when it looks like code.
No. It never compiles, runs or validates code, so it cannot tell you whether your code is correct. It only makes the layout readable.
No. All formatting happens in your browser on your own device, so your code never leaves your computer.
Preprocessor lines such as #include and #define stay at column zero and are never joined to other lines, so your directives stay exactly where they belong.
If you also work with other languages, try the C++ Formatter for the same clean formatting.