jQuery - The Write Less, Do More, JavaScript Library.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Zepto.js - Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API.
Invision - Prototyping and collaboration for design teams
qooxdoo - qooxdoo is a universal JavaScript framework that enables you to create applications for a wide...
Sketch - Professional digital design for Mac.