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What is Less?

Less is a CSS pre-processor, meaning that it extends the CSS language, adding features that allow variables, mixins, functions and many other techniques that allow you to make CSS that is more maintainable, themable and extendable.
Less is a tool in the CSS Pre-processors / Extensions category of a tech stack.
Less is an open source tool with 16.8K GitHub stars and 3.5K GitHub forks. Here’s a link to Less's open source repository on GitHub

Who uses Less?

Companies
689 companies reportedly use Less in their tech stacks, including Accenture, Patreon, and Odoo.

Developers
1045 developers on StackShare have stated that they use Less.

Less Integrations

Prettier, vscode.dev, Ember-cli, Prepros, and OneDev are some of the popular tools that integrate with Less. Here's a list of all 8 tools that integrate with Less.
Pros of Less
215
Better than css
177
Variables
141
Mixins
99
Maintainable
79
Used by bootstrap
56
Open source
50
Extendable
43
Functions
39
Dynamic
30
Fast
2
CSS is valid LESS, very easy to pick up

Blog Posts

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Less Alternatives & Comparisons

What are some alternatives to Less?
CSS 3
CSS3 is the latest evolution of the Cascading Style Sheets language and aims at extending CSS2.1. It brings a lot of long-awaited novelties, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts. Experimental parts are vendor-prefixed and should either be avoided in production environments, or used with extreme caution as both their syntax and semantics can change in the future.
Sass
Sass is an extension of CSS3, adding nested rules, variables, mixins, selector inheritance, and more. It's translated to well-formatted, standard CSS using the command line tool or a web-framework plugin.
Animate.css
It is a bunch of cool, fun, and cross-browser animations for you to use in your projects. Great for emphasis, home pages, sliders, and general just-add-water-awesomeness.
Autoprefixer
It is a CSS post processor. It combs through compiled CSS files to add or remove vendor prefixes like -webkit and -moz after checking the code.
PostCSS
PostCSS is a tool for transforming CSS with JS plugins. These plugins can support variables and mixins, transpile future CSS syntax, inline images, and more.
See all alternatives

Less's Followers
1152 developers follow Less to keep up with related blogs and decisions.