Source Wireframe Kit - Library of 537 blocks for desktop and mobile prototyping
Contra Wireframe Kit - Open source wireframe kit for design and prototyping 🚀
Bloo Lo-fi Wireframe Kit - Open source wireframe kit for design and prototyping
Platforma - Wireframe library of layouts and UI elements
Containers Web Wireframe Kit - High-quality wireframe kit for design and prototyping.
UX Flow Wireframe Prototyping System - Create beautiful user flows prototypes for your next project