AnyTerm

Phone in hand, terminal at fingertips. Run anyterm on your computer, open the URL on your phone — you're in.

No apps to install. No remote desktop. No VPN. Just a browser.

Screenshots

Desktop	Mobile

Why AnyTerm?

You're out. Your computer is home, running a long task. You want to check if it's done.

Without AnyTerm	With AnyTerm
Open ToDesk → Wait for remote desktop to load → Navigate to terminal → Squint at tiny text	Open browser → 192.168.1.5:7860 → Done

AnyTerm is not a remote desktop. It's a lightweight terminal-over-browser that transmits only text — works on 4G, works on slow WiFi, works anywhere.

Quick Start

git clone https://github.com/24kchengYe/AnyTerm.git
cd AnyTerm
npm run install:all
anyterm

That's it. Browser opens automatically. Your phone can connect at the address shown in the console.

Features

Core Terminal

• Real PowerShell (or bash/zsh on Linux/Mac) — not a simulation
• Multiple tabs — create, rename (double-click), close (with confirmation)
• Session persistence — close browser, reopen, output is still there
• Export — right-click tab → save terminal output as .txt
• Copy/paste — Ctrl+C copies selection, Ctrl+V pastes

Multi-Device

• Phone + Computer share the same terminal — see exactly the same output
• Smart resize — whichever device is actively typing controls the terminal width. Phone typing? 55 columns. Desktop typing? 120 columns. No conflict.
• Password login — remote access requires password (set in ~/.anyterm_password)
• Works over ZeroTier/Tailscale — access from anywhere, not just local WiFi

Mobile-Optimized

• Command input bar — type commands with your phone keyboard, tap Send
• Shortcut keys — Enter, Tab, Esc, Ctrl+C/D/Z/L, arrow keys — one tap
• 11px font — fits ~55 columns in portrait, ~90 in landscape
• Voice typing — use your phone's native voice keyboard (no app needed)

Performance

• WebGL rendering — GPU-accelerated terminal via xterm.js WebGL addon
• Flow control — high/low watermark backpressure (100KB/10KB) prevents UI freeze
• Output batching — 32ms frames (~30fps), reduces WebSocket message frequency
• Exponential backoff reconnect — 2s → 30s max, prevents connection spam

Security

• localhost bypass — no password needed on your own computer
• Remote auth — password required for phone/external access
• Persistent password — saved to ~/.anyterm_password, survives restarts

Optional: AI Chat

• Set ANTHROPIC_API_KEY to enable Claude-powered natural language → command conversion
• All commands require manual confirmation (never auto-executes)
• Dangerous command detection (rm, kill, sudo, etc.)

Optional: Voice Input (Server-side)

• Auto-detects local whisper.cpp installation
• Phone records audio → sends to computer → Whisper transcribes → executes as command

Architecture

┌─────────────────────────┐     ┌─────────────────────────┐
│  Desktop Browser        │     │  Phone Browser           │
│  xterm.js (13px, ~120c) │     │  xterm.js (11px, ~55c)   │
│  Full terminal view     │     │  + Command input bar     │
│  Ctrl+C/V/A shortcuts   │     │  + Shortcut buttons      │
└──────────┬──────────────┘     └──────────┬──────────────┘
           │   WebSocket                    │   WebSocket
           └──────────┬────────────────────┘
                      ▼
         ┌────────────────────────┐
         │   AnyTerm Server       │
         │   Node.js + TypeScript │
         ├────────────────────────┤
         │ Terminal Manager       │ ← node-pty (ConPTY/PTY)
         │ "Last active wins"     │ ← Smart multi-client resize
         │ Auth (password-based)  │
         │ AI Engine (optional)   │ ← Claude API
         │ Whisper STT (optional) │ ← whisper.cpp + ffmpeg
         └────────────────────────┘

Multi-Device Resize Strategy

Existing tools handle this poorly:

• tmux: Takes smallest screen — desktop gets shrunk
• ttyd: Each client gets separate shell — not shared
• CSS scaling: Text too small to read on phone

AnyTerm's approach: "Last active client wins." The PTY resizes to match whichever device sent the most recent input. Since you don't type on phone and desktop simultaneously, there's no conflict.

Configuration

Variable	Description	Default
ANYTERM_PORT	Server port	7860
ANYTERM_PASSWORD	Override password (env var)	(reads ~/.anyterm_password)
ANTHROPIC_API_KEY	Enable AI chat	(disabled)
ANYTERM_WHISPER_MODEL	Whisper model path	(auto-detected from D:/whisper/)
ANYTERM_CORS_ORIGIN	CORS origin	*

Remote Access

Same WiFi

Phone browser → http://YOUR_PC_IP:7860 → enter password.

ZeroTier (recommended for remote)

1. Install ZeroTier on both devices
2. Join same network → http://ZEROTIER_IP:7860
3. Free, encrypted, peer-to-peer

Other options

• Tailscale — works but slow in China (overseas relay)
• FRP — needs a public server
• Phone hotspot — simplest: phone shares network to PC, always works

Tech Stack

• Server: Node.js + TypeScript + Express 5 + WebSocket
• Terminal: @lydell/node-pty (ConPTY on Windows)
• Frontend: React 19 + xterm.js + WebGL addon + Vite
• AI: Anthropic Claude API (optional)
• STT: whisper.cpp (optional)

Ecosystem

AnyTerm is part of a trilogy for AI-augmented development:

Project	What it does
AnyTerm	Phone → Browser → Terminal. Remote terminal for humans.
DigitalMe	Chat app → AI Agent → Terminal. Remote terminal for AI agents via Feishu/Telegram.
Zync	Desktop IDE for managing multiple AI agent sessions in parallel.

AnyTerm for humans. DigitalMe for AI. Zync for orchestrating both.

License

MIT

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