Less to CSS Converter
Compile Less to plain CSS instantly in your browser. Resolves @variables, flattens nested selectors, expands parametric mixins, and handles nested @media blocks — no Node.js required.
How to Use Less to CSS Converter
How to Use the Less to CSS Converter
Step 1: Paste Your Less
Paste or type your Less code into the input field on the left.
Step 2: Choose Output Format
- Pretty Print (default) — Outputs well-formatted CSS with proper indentation
- Minify Output — Compresses the output into a single line for production use
Step 3: Copy or Download
Click Copy CSS to copy the result to your clipboard, or Download .css to save it as a file.
Supported Features
- Variables —
@name: value;declarations are resolved throughout the stylesheet - Nesting — Nested selectors are flattened into standard CSS rules
- & selector —
&:hover,&-modifierand similar patterns are combined with the parent - Mixins — Plain class mixins (
.name { }) and parametric mixins (.name(@arg: default) { }) are fully expanded - Mixin calls —
.mixin()and.mixin(value)calls in declarations are expanded inline - @media / @supports — Nested media queries are hoisted to top-level blocks
- @keyframes / @font-face — Preserved as-is in the output
Tips
- Use semicolons (
;) to separate mixin arguments when the values contain commas, e.g..button(rgba(0,0,0,0.5); #fff) - Use examples to quickly see how different Less features compile
- Less operations (
+,-,*,/), guards (when), loops (each), and namespaces are not supported — use a full Less compiler for those - After converting, run your CSS through a validator to confirm the output is correct
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