Image: Wikimedia Commons

LESS

Dynamic stylesheet language

Softwarestyle sheet language free software preprocessorQ1107192

Founded: 2009
Released: 2009
Latest version: 4.9.1
1
Sources
1.“Release 4.9.1”github.com/less/less.js/releases/tag/v4.9.1Retrieved 2026-09-03
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, 2.5.1
2
Sources
1.github.com/less/less.js/blob/master/CHANGELOG.md
2.“Release 2.5.1”github.com/less/less.js/releases/tag/v2.5.1Retrieved 2018-03-14
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, 2.6.1
+55 more
Written in: JavaScript
License: Apache Software License 2.0
1
Sources
1.github.com/less/less.js/blob/master/LICENSE
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Operating system: cross-platform
Website: lesscss.org
1
Sources
1.api.github.com/repos/less/less.jsRetrieved 2017-01-08
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Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Less is a dynamic preprocessor style sheet language that can be compiled into Cascading Style Sheets (CSS) and run on the client side or server side. Designed by Alexis Sellier, Less is influenced by Sass and has influenced the newer "SCSS" syntax of Sass, which adapted its CSS-like block formatting syntax. Less is an open source project. Its first version was written in Ruby; however, in the later versions, use of Ruby has been deprecated and replaced by JavaScript. The indented syntax of Less is a nested metalanguage, as valid CSS is valid Less code with the same semantics. Less provides the following mechanisms: variables, nesting, mixins, operators and functions; the main difference between Less and other CSS precompilers is that Less allows real-time compilation via less.js by the browser.

Overview

All data

83 statements · 73% with external sources · numbers in brackets are citations

Influenced by: Sass
Software quality assurance: continuous integration described at url: github.com · archive url: travis-ci.org
Je-min
Typing discipline: dynamic typing
Different from: Less
Copyright status: copyrighted
Creator: Alexis Sellier
1
Sources
1.“History”lesscss.org/about/Retrieved 2024-03-02
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Dialect of computer language: Cascading Style Sheets

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5 identifiers linking LESS across the web's reference databases

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statements

73%

externally sourced

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AIDb. (2026). LESS (Q1107192). Retrieved from https://aidb.si/e/less-Q1107192