Fancybox - fancyapps.com - Fancy App Store
CALCONIC_ - Build & add interactive calculators to your website! Choose from more than 50 premade calculators or build your own from scratch. No coding required. Free plan available. Zapier Integration. Publish Anywhere.
PhotoSwipe - JavaScript gallery, no dependencies.
NI AWR Design Environment - NI AWR Design Environment is a circuit design and simulation solution.
Lightbox 2 - Lightbox is a simple, unobtrusive script used to overlay images on the current page.
Mapnik - Mapnik is a Free Toolkit for developing mapping applications.