Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
Overlay - Overlay transforms Figma and Sketch designs into reusable React, Vue.js components
Frontify Workspace - The overall tool for creative & design collaboration: - upload, manage & share assets
LayerX - An intuitive app to display transparent images on screen.
Emblem - Build your own beautiful brand
CThruView Transparent Image Viewer - CThruView is a free transparent image viewer that allows mouse clicks to go through the image.