When to Beautify Code
Reading third-party libraries — many vendor scripts are minified. Beautify to read the logic before including in your project. Debugging — formatted code is much easier to set breakpoints in. Code review — paste formatted code in review comments for clarity. Learning — understand how a minified library is structured by formatting it first.
How to Use It
1
Open the tool
Go to Database & Code and scroll to the Code Beautifier.
2
Select language
Choose JavaScript, CSS or HTML to apply the correct formatting rules.
3
Paste your code
Paste the minified or unformatted code.
4
Copy the output
Copy the beautified, indented code for reading, debugging or pasting into your editor.
Pro Tips
💡In Chrome DevTools: Sources tab → find the minified file → click the
{} "Pretty-print" button at the bottom-left to format in-browser without a tool.💡For ongoing projects, use Prettier with a
.prettierrc config to auto-format on save — consistent formatting across the whole team without manual effort.💡Beautified code is larger than minified. For production deployment, always use the minified version — beautify only for reading and debugging.
Frequently Asked Questions
What does beautification do?
Adds consistent indentation, line breaks and spacing to make code readable. It is the reverse of minification and does not change code behavior.
Can I use beautified code in production?
You can, but it's larger than minified code. Use minified for production, beautified for development and debugging.
Does it change code behavior?
No — only whitespace and formatting change. The code logic is identical before and after beautification.
Beautifier vs linter?
A beautifier formats style (indentation, spacing). A linter checks for quality issues (bugs, unused variables, style rules). Prettier combines both for JavaScript/TypeScript.
Beautify your code now
Open the Code Beautifier and format any minified JavaScript, CSS or HTML instantly — free, no login.
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