Code Tools
JavaScript Beautifier
Paste compressed or minified JS and get readable, properly indented code back in seconds. Free, no sign-up required.
Why FileReadyNow
Make Minified JavaScript Human-Readable in One Click
Paste compressed or obfuscated JavaScript and get clean, indented code you can actually read and debug.
Readable Code Output
Restores line breaks, indentation, and spacing to minified or concatenated JavaScript so you can follow the logic again.
Handles Modern JS Syntax
Works with ES6 and beyond, including arrow functions, destructuring, template literals, and async/await patterns.
Indentation Options
Choose 2 spaces, 4 spaces, or tabs to match your preferred coding style before using the output.
One-Click Copy
Copy the formatted JavaScript to your clipboard and paste it into your editor or dev tools without any extra steps.
Runs Locally in Your Browser
Your JavaScript source never leaves your device. No server uploads, no data retention, no privacy concerns.
Download as a File
Save the beautified script as a .js file directly from the browser, ready to drop into your project folder.
Minified JavaScript is intentionally unreadable, written to be fast to transfer rather than easy to follow. The JavaScript Beautifier from FileReadyNow expands compressed or poorly formatted JS into clean, properly indented code you can actually read, debug, and learn from. Paste your code in, click beautify, and get a readable version back.
What This Tool Does
The beautifier adds consistent indentation, line breaks, and spacing throughout. Compressed scripts that pack everything onto a few lines are expanded so functions, conditionals, loops, and object literals all sit on their own lines and are easy to read.
Useful when you need to read through a library, understand how a third-party script works, or find a specific function buried in a minified file.
What Gets Formatted
Here's what gets formatted:
- Functions and their bodies are expanded and indented correctly
- Conditional blocks and loops are placed on separate lines
- Object and array literals are broken out for readability
- Semicolons are preserved in their correct positions
- Consistent spacing is applied around operators and keywords
No logic is changed. Variable names, function definitions, and all the actual code stay exactly as they were.
Common Use Cases
- Reading Minified Libraries: Expand production builds of jQuery, lodash, or any other library so you can understand or reference their internal implementation.
- Debugging Browser Scripts: Format JavaScript captured from browser DevTools or copied from a live page to identify what a script is doing.
- Learning from Examples: Beautify obfuscated or compacted code samples from tutorials and documentation to follow the logic more clearly.
- Security Review: Expand unfamiliar scripts before running them to review what they do and confirm they are safe to use.
- Code Collaboration: Format shared snippets before handing them off so teammates can read and review them without extra work.
What to Expect from the Output
The output is your JavaScript with consistent indentation and clear structure, running identically to the input since only the formatting changes. Use it to study the code, make edits, or hand it off to someone else. If you need to minify it again after editing, the JavaScript Minifier tool is one click away.
Step by Step
How to Use JavaScript Beautifier Tool Online for Free
Paste your JavaScript code into the provided text area.
Click the 'Beautify JavaScript' button to format and beautify your code.
Your formatted JavaScript appears below, ready to copy or download.
Frequently Asked Questions
It reformats messy or minified JS code into a readable and structured layout.
No, it only adjusts the visual layout without altering the functionality.
Yes, the JavaScript Beautifier is free and works instantly online.
Yes, you can easily expand and read compressed scripts.
Yes, it handles even large JS code efficiently.