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Free Code Beautifier – Format CSS JS HTML Online

Beautify and format CSS, JavaScript, and HTML code online for free. Pretty-print with proper indentation.

Indent:

Input JS

Beautified Output

How to Use Beautify CSS / JS / HTML

1

Paste Your Code

Paste your minified or messy CSS, JavaScript, or HTML code.

2

Select Language & Style

Choose the language and your preferred indentation style.

3

Beautify & Copy

Click Beautify and copy your clean, readable code instantly.

Beautify and Format Code with Proper Indentation

Minified code is great for browsers and terrible for humans. When you open a production stylesheet or a compressed script and find everything jammed onto one line, reading it is nearly impossible. Helperzy Code Beautifier reverses that: it takes minified or messy CSS, JavaScript, or HTML and rebuilds it with proper indentation, line breaks, and consistent spacing so the structure becomes clear again. The beautifier understands the syntax of each language. For CSS it puts each rule and declaration on its own line and indents the contents of every selector. For JavaScript it indents blocks, separates statements onto their own lines, and aligns nested braces. For HTML it nests child elements under their parents so the document tree is obvious at a glance. You can pick your preferred indentation — two spaces, four spaces, or tabs — to match your team's style guide. Developers reach for this in a few common situations: inspecting a third-party library's minified source to understand how it works, cleaning up code that was auto-generated by a tool and arrived as a dense block, formatting a snippet copied from somewhere that lost its line breaks, or simply making a quick fix readable before editing it. It pairs naturally with the minifier — beautify to read and edit, minify again to ship. It is worth being realistic about scope. Beautifying only changes whitespace and layout; it never alters logic, so the code behaves identically before and after. However, it cannot recover information that minification truly destroyed — original variable names that were shortened to single letters stay shortened, and removed comments do not come back. The result is well-formatted but reflects the names present in the input. For your own projects, a formatter like Prettier integrated into your editor gives the same readability automatically. All formatting here runs in your browser, so your code is never uploaded.

Frequently Asked Questions – Beautify CSS / JS / HTML

Paste your CSS into Helperzy Code Beautifier, select CSS as the language, and click Beautify. Your formatted code is ready instantly with each rule on its own line and proper indentation inside selectors. There is no signup and no upload — the formatting happens in your browser, so you can clean up as many stylesheets as you like.