A browser-based AI coding workspace for developers who move between desktop, tablet, and phone.
Run Claude Code and Codex in one workspace. Keep your terminal, files, Git view, and AI sessions available from any device.
- One browser workspace for AI coding — Keep terminal, files, Git, and AI sessions in one place.
- Built for device switching — Start on desktop, continue on tablet, and check progress from your phone.
- Objective-driven multi-step orchestration — Let Supervisor steer long-running AI tasks so you do not have to babysit every turn, reduce repetitive manual prompting, and get more consistent outcomes.
# Install globally
npm install -g @spencer-kit/coder-studio
# Launch the workspace
coder-studio openYour browser opens automatically. Select your project folder and start working with Claude Code or OpenAI Codex.
No AI CLI installed yet? You can still browse files and use the terminal. Install Claude Code or Codex later when needed.
- Start an Agent task at the office, check progress on your phone during commute
- Review code changes on a tablet without opening your laptop
- Continue work from a home computer with zero setup
- Let Supervisor push multi-step tasks toward an objective without constant babysitting
- Check evaluation cycles and follow-up actions from your phone instead of watching terminal output
- Reduce repetitive prompting and manual coordination during long agent runs
- Run Claude Code and Codex sessions side by side
- Keep terminal, editor, Git, and supervisor state in one unified interface
- Resume active AI work from another device without rebuilding context
| Device | Best For |
|---|---|
| 🖥️ Desktop | Full coding sessions, file editing, diff review, panel management |
| 📱 Tablet | Code review, Agent progress tracking, file browsing |
| 📲 Phone | Quick status checks, terminal output monitoring, session viewing |
The same workspace URL works across all devices — interface adapts automatically.
Desktop Interface
Mobile Interface
| Feature | Description |
|---|---|
| Cross-Device Workspace | Reopen the same coding environment from desktop, tablet, or phone without rebuilding context |
| Supervisor Loops | Run objective-driven evaluation and follow-up cycles for long AI tasks with less manual babysitting |
| Claude Code + Codex | Use both agent CLIs inside one workspace instead of splitting your workflow across separate tools |
| Unified Terminal, Editor, and Git | Keep PTY terminals, Monaco editing, diffs, and changed files in one browser UI |
| Responsive Workspace UI | Use layouts tuned for desktop, tablet, and mobile instead of a desktop-only interface squeezed onto small screens |
| Session Continuity | Resume active sessions and keep AI work visible across device switches |
| Local-First Runtime | Keep code and runtime on your machine instead of relying on a cloud IDE |
| Dependency | Version | Notes |
|---|---|---|
| Node.js | ≥ 24.0.0 | Required for running Coder Studio |
| Claude Code CLI | Latest | Optional — for Claude Agent sessions |
| OpenAI Codex CLI | Latest | Optional — for Codex Agent sessions |
| Resource | Description |
|---|---|
| Quick Start Guide | Installation to first workspace |
| App Overview | Core concepts and features |
| Provider Setup | Claude Code / Codex CLI installation |
| Desktop Guide | PC interface and shortcuts |
| Mobile Guide | Phone / tablet usage |
| Common Workflows | Task-based tutorials |
| Troubleshooting | FAQ and known issues |
| CLI Reference | Command-line options |
- AI Coding Power Users — Daily Claude Code / Codex users who want better session management
- Multi-Device Developers — Switch between office, home, and mobile devices frequently
- Developers Running Long AI Tasks — Want Supervisor to keep multi-step work moving without constant babysitting
- Privacy-Conscious Developers — Want code to stay on local machine, not cloud IDE
- Web-based terminal streaming optimization
- Session replay and history navigation
- Multi-workspace management
- Plugin system for custom integrations
- Cloud sync for workspace preferences
We welcome contributions! See Contributing Guide for details.
git clone https://github.com/spencerkit/coder-studio.git
pnpm install
pnpm dev| Layer | Technology |
|---|---|
| Frontend | React, Vite, Jotai |
| Backend | Fastify, WebSocket |
| Terminal | xterm.js, node-pty |
| Editor | Monaco Editor |
| Storage | SQLite (node:sqlite) |
MIT License — see LICENSE for details.
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