Fancybox - fancyapps.com - Fancy App Store
Webflow Flexbox UI Builder - Build flexible, responsive layouts — without writing code
PhotoSwipe - JavaScript gallery, no dependencies.
CSS Gridish - Automatically build your grid design's CSS code ✨
Magnific Popup - The greater part of Lightbox modules will completely preload a picture before showing it.
Webflow CMS - Build professional dynamic websites without any code