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CoreUI is an MIT-licensed open source project and is completely free to use. However, the amount of effort needed to maintain and develop new features for the project is not sustainable without proper financial backing.

You can support our Open Source software development in the following ways:

Buy the CoreUI PRO and get access to all PRO components, features, templates, and dedicated support.
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Sidebar

Bootstrap Sidebar is a powerful and customizable responsive navigation component for any type of vertical navigation. Bootstrap Sidebar come with built-in support for branding, navigation, and more.

Other frameworks

CoreUI components are available as native Angular, React, and Vue components. To learn more please visit the following pages.

On this page

How it works

Here’s what you need to know before getting started with the sidebar:

Sidebar requires a wrapping .sidebar.
Sidebar is hidden by default on mobile devices. Force it to be shown by adding .show to the .sidebar.
Sidebar is shown by default on desktop devices. Force it to be hidden by adding .hide to the .sidebar.
Ensure accessibility by using a <nav> element or, if using a more generic element such as a <div>, add a role="navigation" to .sidebar-nav to explicitly identify it as a landmark region for users of assistive technologies.

Read on for an example and list of supported sub-components.

Supported content

Sidebar come with built-in support for a handful of sub-components. Choose from the following as needed:

.sidebar-header for optional header.
.sidebar-brand for your company, product, or project name.
.sidebar-nav for a full-height and lightweight navigation (including support for dropdowns).
.sidebar-footer for optional footer.
.sidebar-toggler for use with our minimizer plugin.

Example

<div class="sidebar sidebar-show">
  <ul class="sidebar-nav">
    <li class="nav-title">Nav Title</li>
    <li class="nav-item">
      <a class="nav-link" href="#">
        <i class="nav-icon cil-speedometer"></i> Nav item
      </a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">
        <i class="nav-icon cil-speedometer"></i> With badge
        <span class="badge bg-primary">NEW</span>
      </a>
    </li>
    <li class="nav-item nav-group">
      <a class="nav-link nav-group-toggle" href="#">
        <i class="nav-icon cil-puzzle"></i> Nav dropdown
      </a>
      <ul class="nav-group-items">
        <li class="nav-item">
          <a class="nav-link" href="#">
            <i class="nav-icon cil-puzzle"></i> Nav dropdown item
          </a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">
            <i class="nav-icon cil-puzzle"></i> Nav dropdown item
          </a>
        </li>
      </ul>
    </li>
    <li class="nav-item mt-auto">
      <a class="nav-link nav-link-success" href="https://coreui.io">
        <i class="nav-icon cil-cloud-download"></i> Download CoreUI</a>
    </li>
    <li class="nav-item">
      <a class="nav-link nav-link-danger" href="https://coreui.io/pro/">
        <i class="nav-icon cil-layers"></i> Try CoreUI
        <strong>PRO</strong>
      </a>
    </li>
  </ul>
  <button class="sidebar-toggler" type="button"></button>
</div>

JavaScript behavior

Methods

You can create a sidebar instance with the sidebar constructor, for example:

var mySidebar = document.querySelector('#mySidebar')
var sidebar = new coreui.Sidebar(mySidebar)

Method	Description
`show`	Shows the sidebar.
`hide`	Hides the sidebar.
`toggle`	Toggles the sidebar to opened or closed.
`getInstance`	Static method which allows you to get the sidebar instance associated with a DOM element.

var sidebarNode = document.querySelector('#mySidebar')
var sidebar = coreui.Sidebar.getInstance(sidebarNode)
sidebar.close()

Events

CoreUI for Bootstrap’s alert plugin exposes a few events for hooking into alert functionality.

Event	Description
`hidden.coreui.sidebar`	This event is fired immediately when the `hide` instance method has been called.
`hide.coreui.sidebar`	This event is fired when the sidebar has finished being closed from the user (will wait for CSS transitions to complete).
`shown.coreui.sidebar`	This event fires immediately when the `show` instance method is called.
`show.coreui.sidebar`	This event is fired when the sidebar has been made visible to the user (will wait for CSS transitions to complete)

var mySidebar = document.getElementById('mySidebar')
mySidebar.addEventListener('closed.coreui.sidebar', function () {
  // do something…
})

Customizing

CSS variables

Sidebars use local CSS variables on .sidebar and .sidebar-backdrop for enhanced real-time customization. Values for the CSS variables are set via Sass, so Sass customization is still supported, too.

  --cui-sidebar-width: #{$sidebar-width};
  --cui-sidebar-bg: #{$sidebar-bg};
  --cui-sidebar-padding-x: #{$sidebar-padding-x};
  --cui-sidebar-padding-y: #{$sidebar-padding-y};
  --cui-sidebar-color: #{$sidebar-color};
  --cui-sidebar-border-width: #{$sidebar-border-width};
  --cui-sidebar-border-color: #{$sidebar-border-color};
  --cui-sidebar-brand-color: #{$sidebar-brand-color};
  --cui-sidebar-brand-height: #{$sidebar-brand-height};
  --cui-sidebar-brand-bg: #{$sidebar-brand-bg};
  --cui-sidebar-close-button-width: #{$sidebar-close-button-width};
  --cui-sidebar-close-button-height: #{$sidebar-close-button-height};
  --cui-sidebar-header-height: #{$sidebar-header-height};
  --cui-sidebar-header-bg: #{$sidebar-header-bg};
  --cui-sidebar-header-padding-x: #{$sidebar-header-padding-x};
  --cui-sidebar-header-padding-y: #{$sidebar-header-padding-y};
  --cui-sidebar-footer-bg: #{$sidebar-footer-bg};
  --cui-sidebar-footer-height: #{$sidebar-footer-height};
  --cui-sidebar-footer-padding-x: #{$sidebar-footer-padding-x};
  --cui-sidebar-footer-padding-y: #{$sidebar-footer-padding-y};
  --cui-sidebar-toggler-bg: #{$sidebar-toggler-bg};
  --cui-sidebar-toggler-height: #{$sidebar-toggler-height};
  --cui-sidebar-toggler-indicator: #{escape-svg($sidebar-toggler-indicator-icon)};
  --cui-sidebar-toggler-indicator-width: #{$sidebar-toggler-indicator-width};
  --cui-sidebar-toggler-indicator-height: #{$sidebar-toggler-indicator-height};
  --cui-sidebar-toggler-hover-bg: #{$sidebar-toggler-hover-bg};
  --cui-sidebar-toggler-indicator-hover: #{escape-svg($sidebar-toggler-indicator-hover-icon)};

  --cui-sidebar-narrow-width: #{$sidebar-narrow-width};

  --cui-sidebar-nav-title-padding-x: #{$sidebar-nav-title-padding-x};
  --cui-sidebar-nav-title-padding-y: #{$sidebar-nav-title-padding-y};
  --cui-sidebar-nav-title-margin-top: #{$sidebar-nav-title-margin-top};
  --cui-sidebar-nav-title-color: #{$sidebar-nav-title-color};
  --cui-sidebar-nav-link-padding-x: #{$sidebar-nav-link-padding-x};
  --cui-sidebar-nav-link-padding-y: #{$sidebar-nav-link-padding-y};
  --cui-sidebar-nav-link-color: #{$sidebar-nav-link-color};
  --cui-sidebar-nav-link-bg: #{$sidebar-nav-link-bg};
  --cui-sidebar-nav-link-border-color: #{$sidebar-nav-link-border-color};
  --cui-sidebar-nav-link-border: #{$sidebar-nav-link-border-width} solid var(--cui-sidebar-nav-link-border-color);
  --cui-sidebar-nav-link-border-radius: #{$sidebar-nav-link-border-radius};
  --cui-sidebar-nav-link-active-color: #{$sidebar-nav-link-active-color};
  --cui-sidebar-nav-link-active-bg: #{$sidebar-nav-link-active-bg};
  --cui-sidebar-nav-link-active-icon-color: #{$sidebar-nav-link-active-icon-color};
  --cui-sidebar-nav-link-disabled-color: #{$sidebar-nav-link-disabled-color};
  --cui-sidebar-nav-link-disabled-icon-color: #{$sidebar-nav-link-disabled-icon-color};
  --cui-sidebar-nav-link-hover-color: #{$sidebar-nav-link-hover-color};
  --cui-sidebar-nav-link-hover-bg: #{$sidebar-nav-link-hover-bg};
  --cui-sidebar-nav-link-hover-icon-color: #{$sidebar-nav-link-hover-icon-color};
  --cui-sidebar-nav-icon-width: #{$sidebar-nav-icon-width};
  --cui-sidebar-nav-icon-height: #{$sidebar-nav-icon-height};
  --cui-sidebar-nav-icon-font-size: #{$sidebar-nav-icon-font-size};
  --cui-sidebar-nav-link-icon-color: #{$sidebar-nav-link-icon-color};
  --cui-sidebar-nav-group-bg: #{$sidebar-nav-group-bg};
  --cui-sidebar-nav-group-items-padding-y: #{$sidebar-nav-group-items-padding-y};
  --cui-sidebar-nav-group-items-padding-x: #{$sidebar-nav-group-items-padding-x};
  --cui-sidebar-nav-group-indicator: #{escape-svg($sidebar-nav-group-indicator-icon)};
  --cui-sidebar-nav-group-indicator-hover: #{escape-svg($sidebar-nav-group-indicator-hover-icon)};
  --cui-sidebar-nav-group-toggle-show-color: #{$sidebar-nav-group-toggle-show-color};

  --cui-backdrop-zindex: #{$zindex-sidebar-backdrop};
  --cui-backdrop-bg: #{$sidebar-backdrop-bg};
  --cui-backdrop-opacity: #{$sidebar-backdrop-opacity};

SASS variables

$sidebar-width:                            16rem;
$sidebar-widths: (
  sm: 12rem,
  lg: 20rem,
  xl: 24rem
);
$sidebar-padding-y:                        0;
$sidebar-padding-x:                        0;
$sidebar-color:                            $high-emphasis-inverse;
$sidebar-bg:                               $gray-base;
$sidebar-border-width:                     0;
$sidebar-border-color:                     transparent;
$sidebar-transition:                       margin-left .15s, margin-right .15s, box-shadow .075s, transform .15s, width .15s, z-index 0s ease .15s;

$sidebar-close-button-width:               2rem;
$sidebar-close-button-height:              4rem;

$sidebar-brand-height:                     4rem;
$sidebar-brand-color:                      $high-emphasis-inverse;
$sidebar-brand-bg:                         rgba($black, .2);

$sidebar-header-height:                    4rem;
$sidebar-header-padding-y:                 .75rem;
$sidebar-header-padding-x:                 1rem;
$sidebar-header-bg:                        rgba($black, .2);
$sidebar-header-height-transition:         height .15s, padding .15s;

$sidebar-narrow-width:                     4rem;

$sidebar-backdrop-bg:                      $black;
$sidebar-backdrop-opacity:                 .5;

$sidebar-nav-title-padding-y:              .75rem;
$sidebar-nav-title-padding-x:              1rem;
$sidebar-nav-title-margin-top:             1rem;
$sidebar-nav-title-color:                  $medium-emphasis-inverse;
$sidebar-nav-title-transition:             height .15s, margin .15s;

$sidebar-nav-link-padding-y:               .8445rem;
$sidebar-nav-link-padding-x:               1rem;
$sidebar-nav-link-color:                   $medium-emphasis-inverse;
$sidebar-nav-link-bg:                      transparent;
$sidebar-nav-link-border-width:            0;
$sidebar-nav-link-border-color:            transparent;
$sidebar-nav-link-border-radius:           0;
$sidebar-nav-link-transition:              background .15s ease, color .15s ease;
$sidebar-nav-link-icon-color:              $medium-emphasis-inverse;

$sidebar-nav-link-hover-color:             $high-emphasis-inverse;
$sidebar-nav-link-hover-bg:                rgba($white, .05);
$sidebar-nav-link-hover-icon-color:        $high-emphasis-inverse;

$sidebar-nav-link-active-color:            $high-emphasis-inverse;
$sidebar-nav-link-active-bg:               rgba($white, .05);
$sidebar-nav-link-active-icon-color:       $high-emphasis-inverse;

$sidebar-nav-link-disabled-color:          $disabled-inverse;
$sidebar-nav-link-disabled-icon-color:     $sidebar-nav-link-icon-color;

$sidebar-nav-icon-width:                   4rem;
$sidebar-nav-icon-height:                  1.25rem;
$sidebar-nav-icon-font-size:               $sidebar-nav-icon-height;

$sidebar-nav-group-bg:                     rgba(0, 0, 0, .2);
$sidebar-nav-group-transition:             background .15s ease-in-out;
$sidebar-nav-group-toggle-show-color:      $sidebar-nav-link-color;

$sidebar-nav-group-items-padding-y:        0;
$sidebar-nav-group-items-padding-x:        0;
$sidebar-nav-group-items-transition:       height .15s ease;

$sidebar-nav-group-indicator-color:        $medium-emphasis-inverse;
$sidebar-nav-group-indicator-icon:         url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$sidebar-nav-group-indicator-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>");
$sidebar-nav-group-indicator-hover-color:  $sidebar-nav-link-hover-color;
$sidebar-nav-group-indicator-hover-icon:   url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$sidebar-nav-group-indicator-hover-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>");
$sidebar-nav-group-indicator-transition:   transform .15s;

$sidebar-footer-height:                    auto;
$sidebar-footer-padding-y:                 .75rem;
$sidebar-footer-padding-x:                 1rem;
$sidebar-footer-bg:                        rgba($black, .2);
$sidebar-footer-height-transition:         height .15s, padding .15s;

$sidebar-toggler-height:                   3rem;
$sidebar-toggler-bg:                       rgba($black, .2);
$sidebar-toggler-transition:               transform .15s;

$sidebar-toggler-indicator-width:          4rem;
$sidebar-toggler-indicator-height:         3rem;
$sidebar-toggler-indicator-color:          $gray-600;
$sidebar-toggler-indicator-icon:           url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 11 14'%3E%3Cpath fill='#{$sidebar-toggler-indicator-color}' d='M9.148 2.352l-4.148 4.148 4.148 4.148q0.148 0.148 0.148 0.352t-0.148 0.352l-1.297 1.297q-0.148 0.148-0.352 0.148t-0.352-0.148l-5.797-5.797q-0.148-0.148-0.148-0.352t0.148-0.352l5.797-5.797q0.148-0.148 0.352-0.148t0.352 0.148l1.297 1.297q0.148 0.148 0.148 0.352t-0.148 0.352z'/%3E%3C/svg%3E");
$sidebar-toggler-hover-bg:                 rgba(0, 0, 0, .3);

$sidebar-toggler-indicator-hover-color:    $sidebar-nav-link-hover-color;
$sidebar-toggler-indicator-hover-icon:     url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 11 14'%3E%3Cpath fill='#{$sidebar-toggler-indicator-hover-color}' d='M9.148 2.352l-4.148 4.148 4.148 4.148q0.148 0.148 0.148 0.352t-0.148 0.352l-1.297 1.297q-0.148 0.148-0.352 0.148t-0.352-0.148l-5.797-5.797q-0.148-0.148-0.148-0.352t0.148-0.352l5.797-5.797q0.148-0.148 0.352-0.148t0.352 0.148l1.297 1.297q0.148 0.148 0.148 0.352t-0.148 0.352z'/%3E%3C/svg%3E");

$sidebar-light-color:    $body-color;
$sidebar-light-bg:       $white;
$sidebar-light-border-width:                     0;
$sidebar-light-border-color:                     transparent;

$sidebar-light-brand-color:  $white;
$sidebar-light-brand-bg:     $primary;

$sidebar-light-header-bg: rgba($black, .2);

$sidebar-light-nav-title-color:                  $medium-emphasis;

$sidebar-light-nav-link-color:                   $medium-emphasis;
$sidebar-light-nav-link-bg:                      transparent;
$sidebar-light-nav-link-icon-color:              $medium-emphasis;

$sidebar-light-nav-link-hover-color:             $high-emphasis;
$sidebar-light-nav-link-hover-bg:                theme-color("primary");
$sidebar-light-nav-link-hover-icon-color:        $high-emphasis;

$sidebar-light-nav-link-active-color:            $high-emphasis;
$sidebar-light-nav-link-active-bg:               rgba($white, .05);
$sidebar-light-nav-link-active-icon-color:       $high-emphasis;

$sidebar-light-nav-link-disabled-color:          $disabled;
$sidebar-light-nav-link-disabled-icon-color:     $sidebar-light-nav-link-icon-color;

$sidebar-light-nav-group-bg:                     rgba(0, 0, 0, .05);
$sidebar-light-nav-group-toggle-show-color:      $sidebar-light-nav-link-color;

$sidebar-light-nav-group-indicator-color:        $medium-emphasis;
$sidebar-light-nav-group-indicator-icon:         url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$sidebar-light-nav-group-indicator-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>");
$sidebar-light-nav-group-indicator-hover-color:  $sidebar-light-nav-link-hover-color;
$sidebar-light-nav-group-indicator-hover-icon:   url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$sidebar-light-nav-group-indicator-hover-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>");

$sidebar-light-footer-bg:                        rgba($black, .1);

$sidebar-light-toggler-bg:                       rgba($black, .1);
$sidebar-light-toggler-hover-bg:                 rgba(0, 0, 0, .2);
$sidebar-light-toggler-indicator-color:          $medium-emphasis;
$sidebar-light-toggler-indicator-icon:           url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 11 14'%3E%3Cpath fill='#{$sidebar-light-toggler-indicator-color}' d='M9.148 2.352l-4.148 4.148 4.148 4.148q0.148 0.148 0.148 0.352t-0.148 0.352l-1.297 1.297q-0.148 0.148-0.352 0.148t-0.352-0.148l-5.797-5.797q-0.148-0.148-0.148-0.352t0.148-0.352l5.797-5.797q0.148-0.148 0.352-0.148t0.352 0.148l1.297 1.297q0.148 0.148 0.148 0.352t-0.148 0.352z'/%3E%3C/svg%3E");
$sidebar-light-toggler-indicator-hover-color:    $sidebar-light-nav-link-hover-color;
$sidebar-light-toggler-indicator-hover-icon:     url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 11 14'%3E%3Cpath fill='#{$sidebar-light-toggler-indicator-hover-color}' d='M9.148 2.352l-4.148 4.148 4.148 4.148q0.148 0.148 0.148 0.352t-0.148 0.352l-1.297 1.297q-0.148 0.148-0.352 0.148t-0.352-0.148l-5.797-5.797q-0.148-0.148-0.148-0.352t0.148-0.352l5.797-5.797q0.148-0.148 0.352-0.148t0.352 0.148l1.297 1.297q0.148 0.148 0.148 0.352t-0.148 0.352z'/%3E%3C/svg%3E");