CSS Tools
CSS to Stylus Converter
Translate stylesheets from plain CSS to Stylus — structure, variables and nesting mapped for you.
In short
Convert CSS to Stylus online: syntax, variables and nesting mapped automatically — free, instant, and 100% in your browser.
By NaveenKumar T · Updated
Learn: Sass vs SCSS vs LESS vs Stylus: Choosing a CSS Preprocessor
- Variables & nesting mapped
- Media queries preserved
- Exact error positions
Runs entirely in your browser — nothing you paste or open here is uploaded, logged, or stored.How we handle data →
Example
CSS to Stylus: input and output
A breadcrumb trail using native nesting, a ::before separator with a content string, and an in-rule media query.
.breadcrumb {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
padding: 0;
list-style: none;
font-size: 0.875rem;
li + li::before { content: "/"; padding-right: 0.5rem; color: #9ca3af; }
a { color: #2563eb; text-decoration: none; &:hover { text-decoration: underline; } }
[aria-current="page"] { color: #374151; font-weight: 500; }
@media (max-width: 480px) { font-size: 0.75rem; }
}.breadcrumb
display flex
flex-wrap wrap
gap 0.5rem
padding 0
list-style none
font-size 0.875rem
li + li::before
content "/"
padding-right 0.5rem
color #9ca3af
a
color #2563eb
text-decoration none
&:hover
text-decoration underline
[aria-current="page"]
color #374151
font-weight 500
@media (max-width: 480px)
font-size 0.75remDeclarations drop both colon and semicolon (content "/", font-size 0.75rem), while the li + li::before selector and the @media (max-width: 480px) header keep their punctuation and the &:hover rule nests one level deeper under a.
Learn more
From CSS to Stylus: what maps
Source: plain CSS — the universal target every browser parses. Target: Stylus — the minimal indented dialect where even colons are optional. Stylus drops braces and semicolons (and tolerates dropping colons); the converter emits the idiomatic minimal form with nesting by indentation.
The converter works on a parsed rule tree rather than regex find-replace, which is why nesting depth, selector grouping with commas, & parent references, and @media blocks survive conversion intact.
When teams convert CSS to Stylus
Stylus survives in a long tail of Node-era projects (and anything built on Vue 2 templates from that period). When plain CSS needs to land in one of those codebases — a copied animation, a vendor override, a designer's handoff — converting to the house dialect keeps the build consistent and the linters quiet, without anyone re-keying braces into indentation by hand.
Help
Frequently asked questions
Everything you need to know about the CSS to Stylus.
01How do I convert CSS to Stylus?
Paste your CSS (or load a file) and press Convert — the stylesheet is parsed into a rule tree and re-emitted as Stylus. Copy the result or download it with the right extension.
02Are colons kept in the Stylus output?
No — the converter emits Stylus's most minimal form: padding 0.5rem instead of padding: 0.5rem, no semicolons, no braces, nesting by two-space indentation. Stylus also accepts the colon form, so if your codebase prefers prop: value add them back; the compiler treats both identically.
03How are selectors, @media rules and multi-part values handled once colons are gone?
Only declarations lose their colon — the first one on the line — so selectors like li + li::before and a query header such as @media (max-width: 480px) keep theirs, and values keep every space: 0.5rem 1rem, 1px solid #e5e7eb and content "/" come through intact. Nested rules become indentation, including rules that were nested with & in native CSS. Comments are removed during parsing, blank lines are not preserved, and the result always uses two-space indentation whatever the input used.
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