JavaScript Formatter Online — Beautify JS Code
Fast alignment and formatting of HTML, CSS, JavaScript and TypeScript code offline.
🔒 Processed entirely in your browser — nothing you enter here is ever uploaded.
The result appears on this page after you run the tool. Nothing you enter is uploaded.
Result
About this tool
This page opens the code formatter with JavaScript / TypeScript preset as the language — paste your script, select the indent width and run the beautifier.
A JavaScript formatter re-indents blocks, braces and statements so minified bundles or hastily written code become readable again — essential when debugging third-party scripts.
The full tool also formats HTML, CSS and JSON — everything is processed locally in your browser, so your source code stays private.
Example. CSS input div{color:red} with a two-space indent is rewritten as a braced block with the declaration on its own indented line.
Limit. Formatting covers HTML, CSS and JavaScript/TypeScript indentation only, and it does not repair invalid syntax.