We use cookies.This website uses essential cookies to operate core features. With your consent, we also use analytics cookies to understand traffic and improve the service. For more details, see our .
We use cookies.This website uses essential cookies to operate core features. With your consent, we also use analytics cookies to understand traffic and improve the service. For more details, see our .
Was this tool helpful to use?
Your feedback helps us make it better
Convert between LESS and CSS code bidirectionally with support for variables, nesting, and other advanced features
CSS is a valid subset of LESS, so the original CSS is reused as-is. You can then add LESS features such as variables, mixins, and nesting.
Frontend development often requires converting between LESS preprocessor code and browser-readable CSS code. This tool uses a real-time compilation engine to accurately handle LESS features such as variables (@var), mixins, and nested rules, outputting W3C-compliant CSS code. When converting in reverse, it automatically reconstructs CSS selectors into LESS nested syntax while preserving key comment structures.
Will LESS variables be lost after conversion?
No. All @variables will be compiled into CSS custom properties (--var) to preserve their values.
How do I convert LESS files containing @import?
You need to manually merge the content of referenced files before conversion, as this tool does not handle external file dependencies.
When converting CSS to LESS, nested rules within media queries may need manual adjustment; when converting styles with !important, it is recommended to check specificity.
Typical use case: When converting Bootstrap's LESS source code (such as variables.less) to CSS, it is recommended to first handle the order of dependency files. Sample input and output: @btn-color: #337ab7; → --btn-color: #337ab7;