Stylus to CSS

Convert Stylus indented syntax back to standard CSS with braces, colons, and semicolons.

100% Client-Side Local Execution

Upload Data

AutoprefixStrip CommentsSort Props

body
  background #fff
  color #333
  font-family sans-serif

.container
  max-width 1200px
  margin 0 auto

body
  background #fff
  color #333
  font-family sans-serif

.container
  max-width 1200px
  margin 0 auto

body {
  background: #fff;
  color: #333;
  font-family: sans-serif;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

body {
  background: #fff;
  color: #333;
  font-family: sans-serif;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

What is Stylus to CSS?

This Stylus to CSS converter compiles Stylus source code, with or without optional braces and semicolons, into standard, browser-ready CSS. It acts as an online stylus compiler for developers maintaining legacy Stylus-based projects who need plain CSS output without setting up a local build. As a stylus to css converter, it's the more common direction people need since Stylus itself must be compiled before browsers can use it.

Technical Execution

The tool parses Stylus's flexible syntax — resolving optional indentation-based nesting, omitted braces/semicolons, variables, and basic operations — and compiles it down into standard CSS with full punctuation restored. This mirrors what the Stylus compiler does at build time, just run in your browser instead of via Node.js.

Zero Data Storage Guarantee

Compilation happens entirely client-side using JavaScript; your Stylus source code is never uploaded to a server, which matters for legacy codebases you don't want exposed externally.

How to Use Stylus to CSS (Step-by-Step Guide)

Paste your Stylus (.styl) source code into the input panel.
The tool compiles it into standard CSS.
Review the generated CSS output.
Copy the CSS or download it as a .css file.
Use the compiled CSS directly in any browser without a build step.

Frequently Asked Questions (FAQ)

Q: What does a Stylus compiler actually do?

A: It resolves Stylus's variables, nesting, optional punctuation, and basic functions into plain CSS that browsers can render directly, since browsers can't interpret Stylus syntax natively.

Q: Can I use this stylus compiler online instead of installing Stylus via npm?

A: Yes, this tool compiles Stylus to CSS entirely in your browser, so no Node.js or Stylus package installation is needed.

Q: Does it support Stylus variables and operations?

A: Yes, basic Stylus variables and arithmetic operations are resolved and compiled into their final CSS values.

Q: Why would I need to convert Stylus to CSS?

A: Browsers can't interpret Stylus directly, so any Stylus file must be compiled to CSS before it can be used in a live website — this is a required build step, not optional.

Q: Does this support Stylus's optional braces and semicolons?

A: Yes, the parser handles Stylus files written with or without braces, colons, and semicolons, since all are valid Stylus syntax.

Q: Will complex Stylus mixins compile correctly?

A: Standard mixins and basic logic compile correctly; highly advanced or plugin-dependent Stylus features may not be fully supported since this runs independently of the official Node.js Stylus compiler.

Q: Is Stylus still worth learning today?

A: Its community has shrunk significantly in favor of Sass/SCSS, so Stylus is mainly relevant if you're maintaining an existing legacy codebase that already uses it.

Q: Is my Stylus code kept private?

A: Yes, all compilation happens locally in your browser and nothing is transmitted to a server.

Report an issue with this tool