This JooNext module is as easy as it gets! Just select a folder in your images folder, and it is instantly transformed to a responsive lightbox gallery.
You have several options to style the gallery to your needs. The gallery module is fully responsive and creates thumbnails on the fly, so there will be no unneeded load times for your gallery!
Select your folder
Select the number of columns
Select the border width
Select the border color
Then publish it anywhere you want.