drift 🌊

one conversation. then gone.

A minimalist anonymous chat app. Two strangers, matched by language. When you close the tab — it never happened.

Built by Felix (Yu Pengzheng).

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What it is

• 🌍 Matched by language (EN / 中文 / ES / FR / JA / KO / DE / PT / RU / AR)
• 💨 No accounts. No history. No logs.
• ⚡ Real-time via Socket.io
• 🎯 Close the tab = it's gone

Tech Stack

• Frontend: React + TypeScript + Tailwind CSS + Vite
• Backend: Node.js + Express + Socket.io

Human Protection

Drift now supports a real anti-bot layer for queue entry:

• Cloudflare Turnstile on the frontend
• Server-side Turnstile verification
• One-time human pass bound to IP + short TTL
• Socket/IP rate limits for connect / queue / message / typing

Locale Detection

Drift now exposes /api/locale-hint and auto-switches the interface to Chinese when the request country resolves to CN (for example via cf-ipcountry or x-vercel-ip-country). If geo headers are missing, it falls back to the browser language.

Environment Variables

Frontend

VITE_TURNSTILE_SITE_KEY=your_turnstile_site_key
VITE_SOCKET_URL=https://your-backend.example.com

Backend

TURNSTILE_SECRET_KEY=your_turnstile_secret_key
MAX_SOCKETS_PER_IP=4
MAX_CONNECTIONS_PER_MIN=20
MAX_QUEUE_JOINS_PER_MIN=6
MAX_MESSAGES_PER_MIN=40
MAX_TYPING_EVENTS_PER_MIN=120

If TURNSTILE_SECRET_KEY is not set, the human protection layer stays off.

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License

Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

You're free to share and adapt this project for non-commercial purposes, with attribution.