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Bootstrap Lightbox - examples & tutorial

Lightbox

Bootstrap 5 Lightbox component

Responsive lightbox built with the latest Bootstrap 5. Lightbox is a responsive gallery with the option to enlarge selected photos.

MDB lightbox is a group of images combined in one responsive gallery. Elements are grouped in a thumbnail grid, which can be displayed as a slideshow.

Note: Read the API tab to find all available options and advanced customization


Basic example

A basic example of a lightbox with the most common use case with the bootstrap grid.


Image optimization

To ensure the proper performance of the page, it is recommended to include thumbnails of images in the src attribute. Then in the data-mdb-img attribute add the path to the image with higher resolution. If the data-mdb-img attribute is omitted, the lightbox will display the same image as in the reduced size.


Shadows and rounded corners

You can improve the look of the images by adding shadows and rounded corners.


Different sizes

Loaded images can have any aspect ratio. Their size will be automatically adjusted to the window when you open the lightbox.


Zoom level

The data-mdb-zoom-level attribute allows you to define the size of a single zoom in / zoom out.


Disabled image

By adding a lightbox-disabled class to any image, you can exclude it from your lightbox. In the example below, the third image has been disabled.


Captions

Image captions can be added using the data-mdb-caption attribute. If it is not set, the data is taken from the alt attribute. When you want to disable caption, leave the data-mdb-caption empty.


Outside access

The lightbox can be successfully operated via JavaScript. There are many public methods available such as open, slide, zoomIn, zoomOut, or close. All are described in the API tab.

Lightbox - API


Usage

Via data attributes


        <div class="lightbox" data-mdb-zoom-level="0.5">
          <img
            src="https://mdbootstrap.com/img/Photos/Thumbnails/Slides/1.jpg"
            data-mdb-img="https://mdbootstrap.com/img/Photos/Slides/1.jpg"
            alt="Lightbox image 1"
            class="w-100"
          />
        </div>
      

Via JavaScript


      const lightbox = document.getElementById('lightbox');
      const instance = mdb.Lightbox.getInstance(lightbox);
      instance.open();
    

Via jQuery

Note: By default, MDB does not include jQuery and you have to add it to the project on your own.

 $('#lightbox').lightbox('open'); 

Options

Options can be passed via data attributes, JavaScript, or jQuery. For data attributes, append the option name to data-mdb-, as in data-mdb-zoom-level="". The img and caption attributes should be pinned directly to the thumbnails, not to the lightbox wrapper element.

Name Type Default Description
zoomLevel Number / String 1 Defines zoom level while zooming in or out.
fontAwesome String 'free' Defines version of Font Awesome library. Available options are 'free' and 'pro'.
img String Defines regular image to load when gallery is open. If not set, the value of src attribute is taken.
caption String Defines caption of the image. If not set, the value of alt attribute is taken.

Methods

Name Parameters Description Example
open target Opens the gallery and activates image set by the target key. Default is the first image. instance.open(1)
slide target Slides an image in the gallery. Available options: left, right, first, last. Dafault is right direction. instance.slide('last')
zoomIn Zooms in active image by one level. instance.zoomIn()
zoomOut Zooms out active image by one level. instance.zoomOut()
toggleFullscreen Toggles fullscreen. instance.toggleFullscreen()
reset Resets changed parameters such as position, zoom or fullscreen. instance.reset()
close Closes the gallery. instance.close()
dispose Removes the mdb.Lightbox instance. instance.dispose()
getInstance element Static method which allows to get the lightbox instance associated with a DOM element. mdb.Lightbox.getInstance(element)

      const lightbox = document.getElementById('lightbox');
      const instance = mdb.Lightbox.getInstance(lightbox);
      instance.open(1);
    

Events

Name Description
open.mdb.lightbox Emitted when a lightbox has been toggled.
opened.mdb.lightbox Emitted when a lightbox is opened.
slide.mdb.lightbox Emitted when a lightbox has been slided.
slided.mdb.lightbox Emitted after an image slide.
zoomIn.mdb.lightbox Emitted when an image has been zoom in.
zoomedIn.mdb.lightbox Emitted after an image is zoomed in.
zoomOut.mdb.lightbox Emitted when an image has been zoom out.
zoomedOut.mdb.lightbox Emitted after an image is zoomed out.
close.mdb.lightbox Emitted when a lightbox has been toggled.
closed.mdb.lightbox Emitted when a lightbox is closed.

        window.addEventListener('opened.mdb.lightbox', () => alert('Lightbox opened'));
      

Import

MDB UI KIT also works with module bundlers. Use the following code to import this component:


      import { Lightbox } from 'mdb-ui-kit';