Paste your JavaScript code to format it, making it readable and easier to understand.
Our advanced JavaScript Beautifier transforms minified or compressed JavaScript into clean, readable code. Add proper indentation, line breaks, and formatting to make your scripts maintainable and easier to debug.
Study minified JavaScript libraries like jQuery, React, or Vue to understand their implementation.
Recover readable format from minified code when source files are unavailable.
Format compressed JavaScript for easier debugging and development workflows.
function a(b){return b*2}var c=a(5);console.log(c);function a(b) {
return b * 2
}
var c = a(5);
console.log(c);Our JavaScript beautifier uses the trusted js-beautify library, which is used by millions of developers worldwide. It provides intelligent formatting that respects JavaScript syntax and best practices.
Beautify JavaScript code for readability: expand spacing, indent blocks, and normalize structure—entirely offline in your browser.
A: No. Only formatting tokens are affected; code behavior remains the same.
A: Yes, though variable names remain shortened—only structure becomes readable.
A: Large files work, but very big bundles may slow the browser; incremental formatting improvements planned.
Minify CSS, JavaScript, and HTML files to reduce file sizes and improve website loading speed by 40-70%.
Format minified code for easier debugging and code review. Make compressed code readable during development.
Prepare optimized code for production environments while maintaining backup copies of readable source code.
Validate syntax, check for errors, and ensure consistent formatting across your development team.
All processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy and security. No registration required.
Advanced JavaScript minifier powered by Terser. Compress JS files, shorten variable names, remove whitespace and comments for optimal website performance and faster loading.
Online CSS beautifier and formatter. Convert minified CSS into clean, readable stylesheets with proper indentation and formatting for better code maintenance.
Online HTML beautifier and formatter tool. Transform minified HTML into clean, readable code with proper indentation and structure for easier debugging and maintenance.
Online CSS minifier tool to compress and optimize CSS stylesheets. Reduce file size by removing whitespace, comments, and redundant code for better website performance.
Convert numbers instantly between binary, octal, decimal, and hexadecimal. Type in any field to update all others.
Write, test, and debug regular expressions with live match highlighting. Supports g, i, m, s flags and named capture groups.