JavaScript Formatter

Paste JavaScript and apply a lightweight client-side formatter with syntax checking, copy, and download controls.

JavaScript

Indent

Mode

ReadyThe formatter is intentionally conservative around strings, templates, comments, and regular expressions.

How to use this JavaScript Formatter

Format JavaScript source for easier reading. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.