JavaScript Minifier / Formatter
Format JavaScript online for free. Beautify messy JS, minify code, and clean up scripts faster for debugging, shipping, and review.
Input JavaScript
Example
Messy JavaScript
function add(a,b){return a+b};console.log(add(1,2));Formatted JavaScript
function add(a,b) {
return a+b;
}
console.log(add(1,2));Popular search phrases
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Guides & Resources
Learn how to use this tool effectively with our comprehensive guides and tutorials.
How to Compare Two Files for Code Review
Spot text and code differences faster when reviewing snippets, config files, and version changes.
JSON Formatter Guide: Pretty Print, Validate, and Fix Common Errors
Format and validate JSON quickly in your browser. Learn how to pretty print JSON, minify JSON, and fix common parse errors for APIs and configs.
How to Format JSON, Decode Base64, and Fix API Payloads
Help developers clean API responses, inspect encoded strings, and resolve formatting issues without leaving the browser.
Frequently Asked Questions
Find answers to common questions about this tool
What does a JavaScript formatter do?
It reformats JavaScript with consistent spacing and line breaks to make the code easier to read and review.
What does a JavaScript minifier do?
It compresses JavaScript output by removing comments and extra whitespace, producing a smaller and more compact version of the code.
Is this JavaScript tool free?
Yes. You can use it online for free without signup.
Can I use JavaScript Minifier / Formatter online for free?
Yes. You can use javascript minifier / formatter online for free with no signup or paid plan required.
Does JavaScript Minifier / Formatter run directly in the browser?
Yes. JavaScript Minifier / Formatter is designed around secure browser-based processing so your workflow stays fast and privacy-conscious.
Can I use JavaScript Minifier / Formatter on mobile, tablet, and desktop?
Yes. JavaScript Minifier / Formatter works in modern mobile browsers as well as on tablet and desktop devices.