Compile Stylus to CSS

This online tool allows you to compile your Stylus code into standard CSS that can be used directly within your webpages or linked as an external stylesheet. Stylus is a flexible and expressive preprocessor that often omits traditional CSS syntax such as opening and closing braces and semi-colons, relying instead on indentation and clean formatting.

When you compile your Stylus code using this tool, all required curly braces, semi-colons, and standard CSS structure are automatically generated for you. This ensures the resulting CSS is fully valid, browser-ready, and compatible with any website or web application.

Using this compiler helps streamline your workflow by allowing you to write concise Stylus code while still producing clean, readable CSS that works everywhere.

Stylus code

Open file

Minify the CSS

CSS code

Everything is worked out in your browser and nothing is uploaded.

How to use it

The stylus to css compiler is a webtool that is designed to compile your stylus code to css code.

Enter your StylusType or paste the stylus code you would like compiled into the Stylus code box, or choose Open file to load a .styl file.
Or try the sampleIf you need to check out how this tool works first, click Sample code to see what happens.
Read the CSSYour code is compiled into a css stylesheet on its own while you type. Turn on Minify the CSS if you want it as small as possible.
Copy or downloadOnce it has been compiled, you may copy the code to the clipboard or download a code.css file.
Use itYour newly compiled css code can now be used in your projects.

Good to know

Indentation matters

Stylus uses indentation to build its blocks, so use the same indent all the way through. Mixing tabs and spaces is the most common cause of errors.

Braces are optional

Braces, colons and semi-colons are all optional in Stylus, so ordinary CSS pasted into the box compiles as well.

Errors

When the Stylus has a mistake, the message and the line it is on appear under the boxes and the last good CSS is dimmed.

Frequently asked questions

What is Stylus?

Stylus is a stylesheet language that is compiled into normal CSS. It uses indentation instead of braces and adds variables, nesting, mixins and functions.

Why does the compiler show an error?

The message comes from the Stylus compiler. Common causes are an indent that does not match the lines around it, mixing tabs and spaces, or a variable or function that was never defined. Fix the line shown and it compiles again.

Why does my CSS have extra @-webkit-keyframes?

Stylus adds -webkit-, -moz- and -o- copies of every @keyframes rule when it compiles. That is part of how Stylus works, and they are safe to remove if you do not need them.

Does it work with my own @import files?

No. The tool works only on the code in the box, so it cannot load other files. Paste the contents of the files you import above your code, and remove the @import lines.

Is anything uploaded?

No. The code is compiled in your browser, so it never leaves your computer.