JavaScript Beautifier
Paste minified or messy JavaScript and get clean, properly indented output instantly. Format your scripts for easier reading, debugging, and development
JavaScript CODE
Beautify Minify
Tip: paste JavaScript on the left — output updates instantly.
Runs 100% Locally in Your Browser
This tool processes your data entirely on your device. Nothing is uploaded, stored, or sent to any server.
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Frequently Asked Questions
What is JavaScript beautification?
JavaScript beautification reformats minified or unreadable JS into clean, consistently indented code with proper line breaks.
How to format minified JavaScript code online?
Paste the minified script into the input field and the tool immediately outputs a human-readable, indented version.
Can beautifying JavaScript break my code?
No. Beautification only changes formatting — all logic, variable names, and execution behaviour remain identical.
What is the difference between JavaScript beautify and JavaScript minify?
Beautify expands code for readability; minify compresses it by removing whitespace and shortening identifiers for smaller file size.
Why would I need to beautify third-party JavaScript?
Beautifying lets you read, audit, and debug minified libraries or scripts you didn't write — useful for security review or learning.
Is my JavaScript code uploaded to a server when formatting?
No. Formatting runs entirely in your browser; your code never leaves your device.