Overview
Plan Together is a real-time collaborative to-do list. Share a list with another user and you both see tasks appear, change and get ticked off as it happens, without refreshing.
Visitors can try it without signing up: "Try the demo" creates a throwaway guest account with a sample list.
What I built
- Next.js 14 (App Router) frontend with TypeScript and Tailwind CSS
- Express REST API with MongoDB (Mongoose) and JWT authentication
- Real-time updates with Socket.IO — each list is a room, so task changes are pushed to everyone viewing it
- List sharing by username, with owner and "shared with me" lists
- Guest demo accounts seeded with a sample list and pruned automatically after 7 days
- npm workspaces monorepo; frontend on Vercel, backend on Render, database on MongoDB Atlas