Contra Wireframe Kit - Open source wireframe kit for design and prototyping 🚀
Shape Divider - Create fully responsive shape dividers for your next project
Platforma - Wireframe library of layouts and UI elements
Now UI Kit - A beautiful Bootstrap 4 UI kit. Yours free.
Craftwork - A collection of User Interface resources made by Craftwork
NOW UI kit by InVision - A beautiful cross-platform UI kit (PSD & Sketch)