Code Formatter Online
Beautify Code in Any Common Language
Need to use Code Formatter Online right now?
Useful for quickly cleaning up a snippet pasted from a chat, PDF, or log file before sharing or committing it.
Beautified output
function add(
a,b
)
{
return a+b;
}
const x={
a:1,b:2
}
;Generic brace/bracket-based reindenter — works across C-style languages, but isn't a language-specific parser.
Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
Who uses this tool?
About Code Formatter Online
Minified or single-line code — JavaScript, JSON-like structures, CSS, or any C-style syntax using braces, brackets, and parentheses — is unreadable without reformatting. This tool reindents code generically by tracking bracket depth: opening braces, brackets, and parens increase indentation, closing ones decrease it, and semicolons break statements onto their own lines.
It's a genuinely universal approach rather than a language-specific formatter: because it works purely on bracket and statement-terminator characters rather than parsing a specific language's grammar, it works reasonably well across JavaScript, C, Java, CSS, and other brace-delimited languages without needing to select which language you're formatting.
This trades language-specific precision (like Prettier's deep understanding of JavaScript syntax) for broad applicability — useful for a quick reformat of minified code from any C-style language when you don't want to identify the exact language or install a dedicated formatter first.
How it works
- Paste minified or messy code. JavaScript, CSS, JSON-like, or other brace-delimited code.
- Structure rebuilds automatically. Bracket depth tracking adds proper indentation.
- Copy the beautified result. Readable, indented code.
Examples
Beautifying a minified function
Input
function add(a,b){return a+b;}Output
function add(a,b){\n return a+b;\n}