.less — Less Stylesheet
A CSS preprocessor language similar to Sass, compiled down to plain CSS before use in a browser.
Safety guidance (not a guarantee)
Source code is plain text and doesn't execute on its own — it has to be compiled or run by a specific tool, which is where any real risk would occur.
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Frequently asked questions
What is a .less file?
A CSS preprocessor language similar to Sass, compiled down to plain CSS before use in a browser.
Can I edit a .less file?
Yes — .less files are commonly editable with software such as Less compiler.
Does having a .less extension mean the file is safe?
No single extension can guarantee that. Source code is plain text and doesn't execute on its own — it has to be compiled or run by a specific tool, which is where any real risk would occur. Always consider where the file came from, not just its name.
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