javascript beautifier & minifier
Beautify or minify JavaScript code online for free. Format messy JS with ES6+ support or compress it for production. 100% client-side — your code never leaves your browser.
Getting Started in Seconds
Paste Your Code
Paste your JavaScript code into the input area on the left.
Choose Mode
Toggle between Beautify (format) and Minify (compress) mode. Adjust indentation if needed.
Process & Copy
Click Format/Minify or enable Live Mode for real-time processing. Copy or download the result.
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Common
Questions
Have a different question about JavaScript Beautifier & Minifier? Feel free to reach out or explore our other documentation.
1How can I make my messy JavaScript code look professional?
Imagine you've inherited a giant 'one-liner' function or just finished a long coding session—our beautifier is like a expert editor. It adds proper indentation, spaces, and line breaks automatically.
2Does this tool work for modern ES6+ features like arrow functions?
Ever worried that a new 'async/await' or template literal would break your formatter? We've built in full support for all modern JavaScript features, so your newest code stays just as clean as the classics.
3Is it safe to paste my application code into an online tool?
Imagine you're doing your work in a secure, digital room that's entirely off-the-grid—that's how our tool works. Your code is formatted or minified locally 100% in your browser, meaning it never leaves your computer.