Stylus to CSS
Convert Stylus indented syntax into standard CSS — nesting and declarations are handled in your browser.
Example
Stylus
.card
padding 20px
color #0284c7
CSS
.card {
padding: 20px;
color: #0284c7;
}How it works
The converter reads Stylus indentation to rebuild selector nesting, then turns each property value line into a CSS property: value; declaration. It targets the common subset; preprocessor logic (variables, mixins, functions) is not evaluated.
Good to know
The Stylus to CSS tool converts Stylus's indentation-based stylesheet syntax into standard CSS that any browser can read. It rebuilds selector nesting from your indentation and rewrites each property value line into a proper property: value; declaration. It's aimed at front-end developers who have inherited a Stylus snippet, copied a rule from a tutorial, or want to quickly read what a small Stylus block compiles to without spinning up a build pipeline.
Reach for it when you need a fast, offline conversion of plain Stylus rules: a component's styles, a few nested selectors, or pseudo-classes like a:hover. Because everything runs in your browser, it's also a safe choice when the code is from a private project you don't want to paste into a remote service. Paste your Stylus on the left, click Convert (or just type, since it converts as you go), and copy the CSS on the right.
Read the output as a direct, structural translation rather than a compiled result. Indentation becomes curly-brace blocks, and brace-balanced nesting is preserved exactly as your indentation implies, so if the braces look wrong, the indentation in your input is usually the cause. The status line confirms a successful conversion of the common subset, not a guarantee that every Stylus feature was resolved.
The important caveat: this is a best-effort converter for the common subset only. Variables, mixins, functions, @import, and interpolation are passed through literally rather than evaluated, so a line like color $brand will emit color: $brand; instead of a real color. For files that depend on that preprocessor logic, run the official Stylus CLI to get a complete, correct compile.
Frequently asked questions
Does this fully compile Stylus?
No — there is no maintained Stylus compiler that runs in the browser. This converts the common subset (nested selectors and declarations). Variables, mixins and functions are not evaluated.
When should I use the Stylus CLI instead?
If your file uses variables, mixins, @import, interpolation or functions, compile it with the official Stylus CLI for a complete, correct result.
Is my data uploaded anywhere?
No — it runs entirely in your browser. Your input never leaves your device and it works offline once loaded.
Is it free?
Yes, completely free with no sign-up and no limits.
People also ask
What is Stylus and how is it different from CSS?
Stylus is a CSS preprocessor that lets you write styles with optional indentation, colons, and semicolons, plus features like variables, mixins, and functions. Standard CSS has none of that logic, so Stylus must be compiled down to plain CSS before browsers can use it.
How does Stylus indented syntax map to nested CSS rules?
Each level of indentation under a selector becomes a nested block, which this tool expands into curly-brace rules. A property and value separated by a space on an indented line become a single CSS declaration ending in a semicolon.
Can I convert Stylus to CSS without installing Node.js?
Yes, for simple rules this browser tool needs no Node.js or build setup at all. For full compilation involving variables, mixins, or imports, you would install the Stylus CLI, which does require Node.js.
Will Stylus variables and mixins be turned into real CSS values here?
No. This converter does not evaluate preprocessor logic, so variables, mixins, functions, and interpolation are emitted as-is rather than resolved to their computed values. Use the Stylus CLI for those.
Is Stylus still maintained and worth learning in 2026?
Stylus still exists and works, but its community activity has declined relative to Sass and to native CSS features like nesting and custom properties. Many teams now favor Sass or plain modern CSS for new projects.
How do I convert in the opposite direction, from CSS to Stylus?
You would use a CSS-to-Stylus converter that strips braces and semicolons and applies indentation. CalcCafe links to a separate CSS to Stylus tool for that direction.
Does the order of selectors and declarations stay the same after conversion?
Yes. The tool preserves the source order of your selectors and declarations and only restructures nesting based on indentation, so the resulting CSS follows the same sequence as your input.
What should I check if the converted CSS looks wrong?
Inspect your input's indentation first, since the converter relies on it to determine nesting and will mirror any inconsistencies. Also confirm the file doesn't depend on variables or mixins, which are not evaluated and may explain unexpected output.
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