About Stylus to CSS

Convert Stylus to standard CSS. Part of the DevTools Surf developer suite. Browse more tools in the CSS collection.

Use Cases

• Teams migrating away from Stylus to standard CSS for simplicity
• Developers extracting compiled CSS from legacy Stylus projects
• DevOps engineers removing Stylus build dependencies from pipelines
• Frontend devs converting Stylus components to CSS modules

Tips

• Verify that Stylus mixins expand to standard CSS correctly
• Check that variable references are resolved to actual values
• Ensure conditional styles are flattened properly in the output

Fun Facts

• Stylus can operate without any punctuation at all, making it the most terse CSS preprocessor available.
• Stylus includes a built-in function library with over 40 color manipulation functions like lighten(), darken(), and saturate().
• The Stylus project was maintained by the Node.js community after TJ Holowaychuk stepped back from open source around 2014.

FAQ

What gets lost going Stylus → CSS?

Variables, mixins, nesting, and arithmetic all get resolved to their concrete values. The output is a flat stylesheet with no preprocessor features.

Does it preserve @media queries?

Yes. Nested media queries (a Stylus feature) get hoisted to top-level CSS media queries with adjusted selectors.

Will deeply nested Stylus work?

Yes — every level of nesting expands into compound selectors. Very deep nesting produces verbose CSS; flatten your Stylus source if the output looks bloated.

Can I use this as a build step?

For small snippets yes. For a full build, use the Stylus CLI in your pipeline — this tool is for quick one-off conversions.