screenshot of Primitive


‎ A front-end design toolkit for developing web apps.


Primitive UI is a front-end design toolkit built with Sass that allows developers to easily build responsive web apps. It provides consistent styling for default HTML elements like buttons, forms, tables, lists, and typography. The toolkit also offers the flexibility to create unique designs by modifying variables in the Sass file.


  • Responsive Design: Primitive UI helps in developing responsive web apps that adapt to different screen sizes.
  • Consistent Styling: The toolkit provides browser-consistent styling for default HTML elements, ensuring a consistent user experience.
  • Customizable: Developers can easily modify variables in the Sass file to customize colors, typography, sizes, breakpoints, buttons, borders, and more.


To install Primitive UI, follow these steps:

CSS quick start (easy):

  1. Download the main.css stylesheet or use the CDN URL:
  2. Save the stylesheet and link to it in the head of your project.
  3. With the stylesheet linked, your HTML elements will be given sensible default styling.

Sass integration (recommended):

  1. Start by modifying variables in the variables.scss file, which defines your project's colors, typography, sizes, breakpoints, buttons, borders, and more.
  2. Define all your variables in this file to keep your project organized.
  3. Make changes to view example elements in dist/test.html or docs/template.html.
  4. Optionally, use Gulp for compiling and automation. You can use commands like yarn gulp-watch or npm run gulp-watch to watch for modifications and recompile, and yarn gulp-css or npm run gulp-css to build the CSS.


Primitive UI is a flexible and responsive front-end design toolkit built with Sass. It provides developers with the tools to easily create responsive web apps and offers consistent styling for default HTML elements. The toolkit can be easily installed by downloading the main.css stylesheet or using the CDN URL. Advanced users can utilize the Sass integration to customize variables and create unique designs. Primitive UI is an open-source project available under the MIT License.


SCSS is a preprocessor scripting language that extends the capabilities of CSS by adding features such as variables, nesting, and mixins. It allows developers to write more efficient and maintainable CSS code, and helps to streamline the development process by reducing repetition and increasing reusability.

Templates & Themes

A template or theme refers to a pre-designed layout or structure that provides a basic framework for building a specific type of application or website. It typically includes good design, placeholder content and functional features, allowing developers to customize and fill in the details according to their specific needs.


Gulp.js is an old but popular site building tool that automates various repetitive development tasks in web development, such as compiling Sass, minifying JavaScript, and optimizing images.