Better Framework

It all depends on which languages are you familiar with and which features are you offering. You will need a backend (server) and frontend (client) strategy. I would go for lightweight options:

First option: You do all the programming
Backend: Node.js (if you prefer javascript) or a light PHP framework
Frontend: Pure.io or Skeleton, you can always go for bootstrap/foundation.

Second option: You install a premade script. if you know python, there's mediadrop but you cand find more googleing