Black Lives Matter. Support the Equal Justice Initiative and read our statement here.


A modern, electron and nodejs based image viewer for Mac, Windows and Linux.


A modern, electron and nodejs based image viewer for Mac, Windows and Linux. lightgallery

Main features

  • Built with Electron.
    • LightGallery uses HTML, CSS, and JavaScript with Chromium and Node.js to build the app.
  • Cross-platform.
    • LightGallery works across operating systems. You can use it on OS X, Windows, or Linux.
  • 20+ Animations
    • LightGallery comes with numerous number of beautiful in-built animations.
  • Animated thumbnails
    • You also have the option to enable animated thumbnails from the settings.
  • Zoom & Fullscreen
    • You can double-click on the image to see its actual size. Zoom-in and zoom-out controls can be used for changing the zoom values of the image.
  • Mouse Drag & keyboard Navigations
    • LightGallery allows users to navigate between slides via mouse drag and keyboard arrows.
  • Pagers
  • Auto slideshow
  • Support various kind of image formats (jpg, png, gif, webp).
  • Highly customizable
  • And many more.
Watch this repository. More features are coming


Name Default Description
mode 'lg-slide' Type of transition between images. lightGallery comes with lots of transition effects such as 'lg-slide', 'lg-fade', 'lg-zoom-in', 'lg-zoom-in-big', 'lg-zoom-out', 'lg-zoom-out-big', 'lg-zoom-out-in', 'lg-zoom-in-out', 'lg-soft-zoom', 'lg-scale-up', 'lg-slide-circular', 'lg-slide-circular-vertical', 'lg-slide-vertical', 'lg-slide-vertical-growth', 'lg-slide-skew-only', 'lg-slide-skew-only-rev', 'lg-slide-skew-only-y', 'lg-slide-skew-only-y-rev', 'lg-slide-skew', 'lg-slide-skew-rev', 'lg-slide-skew-cross', 'lg-slide-skew-cross-rev', 'lg-slide-skew-ver', 'lg-slide-skew-ver-rev', 'lg-slide-skew-ver-cross', 'lg-slide-skew-ver-cross-rev', 'lg-lollipop', 'lg-lollipop-rev', 'lg-rotate', 'lg-rotate-rev', 'lg-tube'
cssEasing 'ease' Type of easing to be used for animations
speed 600 Transition duration (in ms).
hideBarsDelay 6000 Delay for hiding gallery controls in ms
useLeft false force lightgallery to use css left property instead of transform.
closable true allows clicks on dimmer to close gallery.
loop true If false, will disable the ability to loop back to the beginning of the gallery when on the last element.
keyPress true Enable keyboard navigation
controls true If false, prev/next buttons will not be displayed.
slideEndAnimatoin true Enable slideEnd animation
hideControlOnEnd false If true, prev/next button will be hidden on first/last image.
mousewheel true Change slide on mousewheel
preload 1 Number of preload slides. will exicute only after the current slide is fully loaded. ex:// you clicked on 4th image and if preload = 1 then 3rd slide and 5th slide will be loaded in the background after the 4th slide is fully loaded.. if preload is 2 then 2nd 3rd 5th 6th slides will be preloaded
showAfterLoad true Show Content once it is fully loaded
counter true Whether to show total number of images and index number of currently displayed image.
swipeThreshold 50 By setting the swipeThreshold (in px) you can set how far the user must swipe for the next/prev image.
enableDrag true Enables desktop mouse drag support
thumbnail true Enable thumbnails for the gallery
animateThumb true Enable thumbnail animation.
currentPagerPosition 'middle' Position of selected thumbnail. 'left' or 'middle' or 'right'
thumbWidth 100 Width of each thumbnails.
thumbContHeight 100 Height of the thumbnail container including padding and border
thumbMargin 5 Spacing between each thumbnails
toogleThumb true Whether to display thumbnail toggle button.
enableThumbDrag true Enables desktop mouse drag support for thumbnails.
swipeThreshold 50 By setting the swipeThreshold (in px) you can set how far the user must swipe for the next/prev slide.
autoplay true Enable gallery autoplay
pause 5000 The time (in ms) between each auto transition.
progressBar true Enable autoplay progress bar
fourceAutoplay false If false autoplay will be stopped after first user action
autoplayControls true Show/hide autoplay controls.
pager true Enable/Disable pager
zoom true Enable/Disable zoom option
scale 1 Value of zoom should be incremented/decremented


Project's folders

  • app - code of your application goes here.
  • config - place for you to declare environment specific stuff.
  • build - in this folder lands built, runnable application.
  • releases - ready for distribution installers will land here.
  • resources - resources for particular operating system.
  • tasks - build and development environment scripts.


npm install

It will also download Electron runtime, and install dependencies for second package.json file inside app folder.

Starting the app

npm start

Making a release

To make ready for distribution installer use command:

npm run release

It will start the packaging process for the operating system you are running this command on. The file which is ready for distribution will be outputted to releases directory.

You can create Windows installer only when running on Windows, the same is true for Linux and OSX. So to generate all three installers you need all three operating systems.

Other Projects

LightGallery for web

A customizable, modular, responsive, lightbox gallery plugin.

jQuery lightslider

lightSlider is a lightweight responsive Content slider with carousel thumbnails navigation.

Angular flash

A simple lightweight flash message module for angularjs


An angularjs directive to copy text to clipboard without using flash

Angular trix

A rich WYSIWYG text editor directive for angularjs.


Ladda button directive for angularjs


Integrated Suite of Business Applications.. (Not an open source project but free for the first 1,000 Companies!)

Follow me on twitter @sachinchoolur for the latest news, updates about this project.

Special thanks to Jakub Szwacz for electron boilerplate


MIT License


Something missing? Edit this app.

Keyboard Shortcuts

Key Action
/ Focus the search bar
Esc Focus the search bar and cleans it
Select the next search result
Select the previous search result
Enter Open the selected search result
cmdEnter Ctrl+Enter Open the selected search result in a new tab