Click the "Select File" button above, and choose your LESS file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert LESS to another file type
To convert LESS stylesheets to another format, you need Less.js or other Web software.
Convert a file to LESS
To convert other file formats to the "Dynamic Stylesheet Language" file type, you need software like Less.js or a similar tool.
About LESS files
A .LESS file is a dynamic stylesheet written in the Leaner Style Sheets language. Web developers use it as a CSS pre-processor to write more maintainable frontend code using features like variables, mixins, nested rules, and functions. These files store styling logic that cannot be interpreted natively by any modern web browser. To open and edit these files, developers typically use advanced text editors like Visual Studio Code or Sublime Text. The actual processing is handled by the official Less.js compiler or build tools like Webpack. The primary disadvantage of the .LESS format is its absolute lack of native browser support. If you try to link a .LESS file directly in an HTML document, the browser will ignore it and the website will appear completely unstyled. Developers must constantly compile these files into standard, readable formats. The absolute best target format is CSS. When converting to CSS, the compiler flattens all nested rules and replaces variables with static values, ensuring perfect cross-browser compatibility. Some development teams also convert legacy code to SCSS or SASS to align with modern framework standards. Standard online document converters fail to process the specialized logic of these development files. Just drag and drop your file to identify the format, view its internal code structure, and convert it into a standard CSS file when possible.
Convert.Guru analyzes your LESS file, detects the exact format, and lets you read the text inside.
If you want to convert LESS file to CSS, SCSS, SASS, HTML, HTM, JS, PHP, ASP, ASPX, JSP, JSPX or PY, you can use Less.js or similar software from the "CSS Pre-processor Stylesheet" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to LESS, try Less.js or another comparable tool in the "CSS Pre-processor Stylesheet" category.
The LESS Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LESS converter.