Less. The dynamic stylesheet language.
JavaScript CSS HTML
Latest commit 385da8f Nov 14, 2017 @matthew-dean matthew-dean Update stale.yml
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benchmark Added more accurate & detailed benchmark Jul 14, 2016
bin fix lessc (less.options is a function and breaks less.render) May 28, 2017
build More style cop.. Jan 30, 2015
dist Release 3.0.0-alpha.3 Oct 9, 2017
gradle/wrapper added gradle wrapper scripts Oct 27, 2013
lib Allows for inclusing of LESS files from node_modules without .less ex… Oct 16, 2017
test Added CSS to test the LESS Oct 20, 2017
.eslintrc.json eslint spaced-comment and corresponding changes May 31, 2017
.gitattributes Support include-path inside data-uri. Related to #1634 and #2275 Jan 13, 2015
.gitignore Reference inline comments. Aug 31, 2015
.npmignore ignore .grunt folder for npm Oct 19, 2014
.travis.yml Deprecate Node 0.10 and 0.12 support Oct 24, 2017
CHANGELOG.md v2.7.1 HOTFIX May 9, 2016
CONTRIBUTING.md merge in latest 1.7.1 release Jun 10, 2014
Gruntfile.js Exclude import-module from browsert test as node_modules will not be … Oct 20, 2017
LICENSE Remove copyright from licence so we only have one Jun 6, 2014
README.md Update © year Oct 19, 2017
appveyor.yml Deprecate Node 0.10 and 0.12 support Oct 24, 2017
bower.json Remove bower version as per #2607 Sep 25, 2015
browser.js remove un-necessary index Nov 9, 2014
build.gradle Trim trailing whitespace. Mar 2, 2014
gradlew added gradle wrapper scripts Oct 27, 2013
gradlew.bat added gradle wrapper scripts Oct 27, 2013
index.js remove un-necessary index Nov 9, 2014
package.json Mime update Oct 21, 2017


This is the Less 3.0 Alpha branch (non-production ready). For the stable branch of Less, go here.

npm version Build Status Build status Dependencies devDependency Status optionalDependency Status Twitter Follow Join the chat at https://gitter.im/less/less.js Chat with Less.js users

Sauce Test Status


The dynamic stylesheet language. http://lesscss.org.

This is the JavaScript, official, stable version of Less.

Getting Started

Options for adding Less.js to your project:

More information

For general information on the language, configuration options or usage visit lesscss.org.

Here are other resources for using Less.js:


Please read CONTRIBUTING.md. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Reporting Issues

Before opening any issue, please search for existing issues and read the Issue Guidelines, written by Nicolas Gallagher. After that if you find a bug or would like to make feature request, please open a new issue.

Please report documentation issues in the documentation project.


Read Developing Less.

Release History

See the changelog


Copyright (c) 2009-2017 Alexis Sellier & The Core Less Team Licensed under the Apache License.