Real-time collaborative notepad. Share a room code and anyone can edit the same document simultaneously. All data exists only in memory and vanishes when everyone leaves.
- Ephemeral — No data is stored on a server
- Real-time sync — Yjs CRDT + WebRTC P2P for conflict-free collaboration
- No login required — Anyone can join instantly
| Area | Technology |
|---|---|
| Framework | SvelteKit (Svelte 5) |
| Real-time sync | Yjs + WebRTC (P2P) |
| Editor | Tiptap (WYSIWYG block editor) |
| Styling | Tailwind CSS v4 |
| Deployment | Vercel |
| Testing | Vitest + Playwright |
- Short alphanumeric room codes (Google Classroom style)
- Join by entering a room code
- Data is destroyed when all participants leave
- Notion-style WYSIWYG markdown editor
- Real-time co-editing via Yjs CRDT (conflict-free)
- No login — join instantly as a guest
- Nicknames auto-assigned as
Guest(random)or user-defined, persisted in localStorage
- Live display of connected users in the room
# Install dependencies
bun install
# Dev server
bun run dev
# Signaling server (for local P2P connections)
bun run signaling
# Tests
bun run test # Unit tests
bun run test:e2e # E2E tests
# Build
bun run build