FCP Lightest Lightbox


Simple and super lightweight Lightbox for WordPress with gallery navigation support.


  • Zero render-blocking tags are added on the page
  • Only 0.5 kB is loaded if no linked images found
  • Gallery support
  • Caching, minifying & combining friendly
  • jQuery independent (in case it’s async)
  • Responsive
  • Keyboard navigation
  • Swipe navigation




Starts working just by the plugin activation. Opens linked images in a popup Lightbox by click. Adds arrow navigation, if an image is a part of a gallery or other links sequence.


You can modify the code for your needs, or suggest improvemens on GitHub. It is pretty transparent and well-commented.


  • Desktop view
  • Mobile view


  1. Install the plugin
  2. Activate the plugin


Waiting for your questions, which you can ask here or via GitHub.


1 de marzo de 2024
Here is a positive review to boost your motivation, dear developer ;)It’s the simplest lightbox for images that I use on all my clients’ websites, which are something about 10. Its standout feature is its unobtrusiveness: it doesn’t affect loading speed, doesn’t conflict with caching plugins – it’s as simple as a bolt – robust and effective.However, I would like it to have zoom functionality and the ability to customize its design in some future.
8 de septiembre de 2022
For me lightweight means (no jquery) and this plugin checks all the boxes for my requirement. I never wanted a bloated lightbox plugin which adds tons of options and customization features adding un-necessary CSS and JS. Here I just get the lightbox feature with minimal CSS adding no extra bloat to the website. Best part is NO JQEURY and I hope it remains this way. Thanks again!
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Colaboradores y desarrolladores

«FCP Lightest Lightbox» es un software de código abierto. Las siguientes personas han colaborado con este plugin.


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Registro de cambios


  • Swipe navigation added
  • Inlined the inline js
  • Improved the siblings search


  • Removed the render blocking css to be loaded by js
  • Moved the main js and css away to load only if a linked image is found


  • Optimized to fit WP 5.7


  • Optimized: Gallery & image sequences tracking added


  • Initial release