# <picture><source media="(prefers-color-scheme: dark)" srcset="docs/references/badges/openchamber-logo-dark.svg"><img src="docs/references/badges/openchamber-logo-light.svg" width="32" height="32" align="absmiddle" /></picture> OpenChamber

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## **OpenCode, everywhere.** Desktop. Browser. Phone.

### A rich interface for [OpenCode](https://opencode.ai). Review diffs, manage agents, run dev servers, and keep the big picture while your AI codes.

![OpenChamber Chat](docs/references/chat_example.png)

<details>
<summary>More screenshots</summary>

![Tool Output](docs/references/tool_output_example.png)
![Settings](docs/references/settings_example.png)
![Diff View](docs/references/diff_example.png)
![VS Code Extension](packages/vscode/extension.jpg)

<p>
<img src="docs/references/pwa_chat_example.png" width="45%" alt="PWA Chat">
<img src="docs/references/pwa_diff_example.png" width="45%" alt="PWA Diff">
</p>

</details>

## Why use OpenChamber?

- **Cross-device continuity**: Start in TUI, continue on tablet/phone, return to terminal - same session
- **Remote access**: Use OpenCode from anywhere via browser
- **Familiarity**: A visual alternative for developers who prefer GUI workflows

## Features

### Core (all app versions)

- Branchable chat timeline with `/undo`, `/redo`, and one-click forks from earlier turns
- Smart tool UIs for diffs, file operations, permissions, and long-running task progress
- Voice mode with speech input and read-aloud responses for hands-free workflows
- Multi-agent runs from one prompt with isolated worktrees for safe side-by-side comparisons
- Git workflows in-app: identities, commits, PR creation, checks, and merge actions
- GitHub-native workflows: start sessions from issues and pull requests with context already attached
- Plan/Build mode with a dedicated plan view for drafting and iterating implementation steps
- Inline comment drafts on diffs, files, and plans that can be sent back to the agent
- Context visibility tools (token/cost breakdowns, raw message inspection, and activity summaries)
- Integrated terminal with per-directory sessions and stable performance on heavy output
- Built-in skills catalog and local skill management for reusable automation workflows

### Web / PWA

- Provider-aware tunnel access model with Cloudflare `quick`, `managed-remote`, and `managed-local` modes
- One-scan onboarding with tunnel QR + password URL helpers
- Mobile-first experience: optimized chat controls, keyboard-safe layouts, and attachment-friendly UI
- Background notifications plus reliable cross-tab session activity tracking
- Built-in self-update + restart flow that keeps your server settings intact

### Desktop (macOS + Windows)

- Floating Mini Chat: keep a small always-on-top assistant beside your editor, browser, or terminal
- Multiple native windows for separate projects or sessions
- Native notifications for task alerts while OpenChamber is hidden
- One-click open in VS Code, Cursor, Terminal, Finder, Explorer, and more
- Desktop host switcher for local and remote OpenChamber instances
- Convenient tunnel management without manual setup
- Deep-link connections for joining remote OpenChamber from a link
- SSH remote access with host import, connection management, and port forwarding

### VS Code Extension

- Editor-native workflow: open files directly from tool output and keep sessions beside your code
- Agent Manager for parallel multi-model runs from a single prompt
- Right-click actions to add context, explain selections, and improve code in-place
- In-extension settings, responsive layout, and theme mapping that matches your editor
- Hardened runtime lifecycle and health checks for faster startup and fewer stuck reconnect states

### Custom Themes

- **Use it from anywhere** - Cloudflare tunnel with QR code onboarding. Scan, connect, code from your couch.
- **Branchable chat timeline** - Undo, redo, fork from any turn. Explore different approaches without losing your place.
- **GitHub-native workflows** - Start sessions from issues and PRs with context already attached. Review checks, merge - all in-app.
- **Project Actions** - Run dev servers, configure SSH port forwarding, open remote URLs locally. Your project commands, one click away.
- **Connect to remote machines** - Desktop app connects to remote OpenChamber instances over SSH, with dedicated lifecycle and UX flows.

## Quick Start

> **Prerequisite:** Desktop bundles the matching OpenCode CLI. CLI/Web and VS Code use your installed [OpenCode CLI](https://opencode.ai).

### **Desktop (macOS + Windows)**
Download from [Releases](https://github.com/btriapitsyn/openchamber/releases).

### **VS Code**
Install from [Marketplace](https://marketplace.visualstudio.com/items?itemName=fedaykindev.openchamber) or search "OpenChamber" in Extensions.

### **CLI (Web + PWA)**
_requires Node.js 22+_

```bash
curl -fsSL https://raw.githubusercontent.com/btriapitsyn/openchamber/main/scripts/install.sh | bash
openchamber --ui-password be-creative-here
```

<details>
<summary>Advanced CLI options</summary>

```bash
openchamber --port 8080              # Custom port
openchamber --lan --port 3000        # Listen on LAN (0.0.0.0)
openchamber --ui-password secret     # Password-protect UI
openchamber startup enable           # Start at login as a native service
OPENCHAMBER_UI_PASSWORD=secret openchamber startup enable # Save service password env
openchamber startup status           # Show startup service status
openchamber startup disable          # Remove startup service
openchamber tunnel help              # Tunnel lifecycle commands
openchamber tunnel providers         # Show provider capabilities
openchamber tunnel profile add --provider cloudflare --mode managed-remote --name prod-main --hostname app.example.com --token <token>
openchamber tunnel start --profile prod-main
openchamber tunnel start --provider cloudflare --mode quick --qr
openchamber tunnel start --provider cloudflare --mode managed-local --config ~/.cloudflared/config.yml
openchamber tunnel status --all      # Show tunnel state across instances
openchamber tunnel stop --port 3000  # Stop tunnel only (server stays running)
openchamber connect-url --port 3000  # Add this server to OpenChamber Desktop
openchamber connect-url --server http://host:3000 --qr
openchamber connect-url --port 3000 --qr
openchamber logs                     # Follow latest instance logs
OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber                    # Connect to external OpenCode server
OPENCODE_HOST=https://myhost:4096 OPENCODE_SKIP_START=true openchamber  # Connect via custom host/HTTPS
openchamber stop                     # Stop server
openchamber update                   # Update to latest
```

`startup enable` snapshots your current environment into the native service so startup behaves like you launched `openchamber` from the same shell. This preserves provider tokens, PATH, SSH agent settings, and other CLI auth/config env vars. Use `--no-env-snapshot` if you want a minimal service env.

Connect to an existing OpenCode server:
```bash
OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber
OPENCODE_HOST=https://myhost:4096 OPENCODE_SKIP_START=true openchamber
```

Bind managed OpenCode server to all interfaces (use only on trusted networks):
```bash
OPENCHAMBER_OPENCODE_HOSTNAME=0.0.0.0 openchamber --port 3000
```

Expose OpenChamber itself on your LAN:
```bash
openchamber --lan --port 3000 --ui-password secret
```

Add this server to OpenChamber Desktop or another OpenChamber app:
```bash
openchamber connect-url --port 3000 --qr
```

If no OpenChamber server is running on that port, `connect-url` starts one before generating the link.

Headless/API-only setup for a remote machine:
```bash
openchamber connect-url --port 3000 --api-only --lan --server http://your-host-or-ip:3000 --qr --ui-password secret
```

This runs OpenChamber as an API-only server without the desktop app or browser UI assets on that machine, then creates a link for Desktop to import. `--lan` makes the server reachable from other machines. `--server` is the address Desktop should use.

When OpenChamber was started with `--lan` or `--host 0.0.0.0`, `connect-url` automatically uses a detected LAN IP instead of `127.0.0.1`. Use `--server http://host:3000` to override the advertised address, and include `--lan` when `connect-url` needs to start the server for LAN access.

Paste the printed `openchamber://connect?...` link in Desktop under Settings -> Remote Instances -> Direct Instances -> Import Link. The link contains the server URL and a client token. It does not enable browser UI password protection; use `--ui-password` when exposing a server beyond localhost.

</details>

<details>
<summary>systemd service (VPN / LAN access)</summary>

Run OpenChamber and OpenCode as separate persistent services — useful when you want to access your
dev machine over a VPN (e.g. Tailscale) or LAN without a Cloudflare tunnel.

**How it works:**
- OpenCode runs as its own service, binding only to `localhost`.
- OpenChamber connects to it via `OPENCODE_HOST` and `--lan` makes it reachable on your VPN IP.
- `--foreground` keeps the CLI process alive so systemd can track and restart it.

**`~/.config/systemd/user/opencode.service`**
```ini
[Unit]
Description=OpenCode Server

[Service]
Type=simple
ExecStart=opencode serve --port 4095
Environment="PATH=/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin:/home/YOU/.local/bin:/home/YOU/.npm-global/bin:/usr/local/bin:/usr/bin:/bin"
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
Restart=on-failure
RestartSec=5

[Install]
WantedBy=default.target
```

> **Why set `PATH` and `SSH_AUTH_SOCK`?**
> systemd user services start with a minimal environment — no shell profile is sourced.
> Without an explicit `PATH`, OpenCode won't find tools installed via Homebrew, npm, or `~/.local/bin`.
> Without `SSH_AUTH_SOCK`, git operations over SSH (push, pull, clone) will fail because the agent socket isn't inherited.
> Adjust the `PATH` to match your own tool installation paths.
> `%t` expands to `$XDG_RUNTIME_DIR` (e.g. `/run/user/1000`), where most SSH agents write their socket.

**`~/.config/systemd/user/openchamber.service`**
```ini
[Unit]
Description=OpenChamber Web Server
After=opencode.service

[Service]
Type=simple
ExecStart=openchamber serve --port 3000 --host 0.0.0.0 --ui-password your-password --foreground
Environment="OPENCODE_HOST=http://localhost:4095"
Environment="OPENCODE_SKIP_START=true"
Restart=on-failure
RestartSec=5

[Install]
WantedBy=default.target
```

```bash
systemctl --user daemon-reload
systemctl --user enable --now opencode openchamber
```

OpenChamber will be reachable at `http://<your-vpn-hostname>:3000` from any device on your VPN.

> **Note:** `--host 0.0.0.0` is required to listen on all interfaces. The default
> bind address is `127.0.0.1` (localhost only). Use `--host <ip>` or
> `OPENCHAMBER_HOST=<ip>` to bind to a specific interface instead.

</details>

<details>
<summary>Docker</summary>

```bash
docker compose up -d
```

Available at `http://localhost:3000`.

**UI Password:**
```yaml
environment:
  UI_PASSWORD: your_secure_password
```

**Cloudflare Tunnel (optional):**
```yaml
environment:
  OPENCHAMBER_TUNNEL_MODE: quick # quick | managed-remote | managed-local
  OPENCHAMBER_TUNNEL_PROVIDER: cloudflare
```

For `managed-remote` mode, provide:

```yaml
environment:
  OPENCHAMBER_TUNNEL_MODE: managed-remote
  OPENCHAMBER_TUNNEL_HOSTNAME: app.example.com
  OPENCHAMBER_TUNNEL_TOKEN: <token>
```

For `managed-local` mode, optionally provide:

```yaml
environment:
  OPENCHAMBER_TUNNEL_MODE: managed-local
  OPENCHAMBER_TUNNEL_CONFIG: /home/openchamber/.cloudflared/config.yml
```

Managed-local path note: `OPENCHAMBER_TUNNEL_CONFIG` must point to a path inside the container user home (`/home/openchamber/...`). If your Cloudflare config references a credentials JSON file, that file path must also be accessible inside the container (mount with `volumes`).

### Reverse proxy notes

- For a complete reverse proxy setup guide, see [`docs/REVERSE_PROXY.md`](./docs/REVERSE_PROXY.md).
- Website docs source lives at `packages/docs/content/docs/reverse-proxy.mdx`.

### Tunnel behavior notes

- OpenChamber supports one active tunnel per running instance (port).
- Starting a tunnel with a different mode/provider on the same instance replaces the current tunnel.
- Replacing or stopping a tunnel revokes existing connect links and invalidates remote tunnel sessions for that instance.
- Connect links are one-time tokens; generating a new link revokes the previous unused link.

**Data Directory Permission Note:** The `data/` directory is mounted into the container for persistent storage (config, sessions, SSH keys, workspaces). Before running, ensure the directory exists and has proper permissions:

```bash
mkdir -p data/openchamber data/opencode/share data/opencode/config data/ssh
chown -R 1000:1000 data/
```

**SSH/Git:** If git push/pull fails, run `ssh -T git@github.com` in terminal.

</details>


## Features

<details>
<summary><strong>Chat & Interaction</strong></summary>

- Branchable chat timeline with `/undo`, `/redo`, and one-click forks from any turn
- Multi-agent runs from one prompt with isolated worktrees for safe side-by-side comparisons
- Voice mode with speech input and read-aloud responses for hands-free workflows
- Plan/Build mode with a dedicated plan view for drafting and iterating steps
- Inline comment drafts on diffs, files, and plans - send feedback back to the agent
- Shell mode via leading `!` with inline output
- Share messages as images
- Mermaid diagrams render inline with copy/download actions
- Smart tool UIs for diffs, file operations, permissions, and task progress

</details>

<details>
<summary><strong>Git & GitHub</strong></summary>

- Full Git sidebar with staging, commits, push/pull, branch management, and rebase/merge flows
- PR creation with AI-generated descriptions, status checks, and merge actions
- Start sessions from GitHub issues and pull requests with context baked in
- Multi-remote push and fork-aware PR creation
- Worktree integration: isolated sessions per branch, merge back with conflict handling
- Git identities, gitmoji support, and multi-account GitHub auth

</details>

<details>
<summary><strong>Files, Diff & Terminal</strong></summary>

- Workspace file browser with inline editing, syntax highlighting, Vim mode, and markdown preview
- Beautiful diff viewer with stacked/inline modes, lazy loading for large changesets
- Integrated terminal with per-directory sessions, tabbed interface, and stable heavy-output performance
- Clickable file paths in messages - jump to exact line locations
- File-type icons across all views for faster visual scanning

</details>

<details>
<summary><strong>Web / PWA</strong></summary>

- Cloudflare tunnel with quick, managed-remote, and managed-local modes, secure one-time connect links, and QR onboarding
- Mobile-first: optimized chat controls, keyboard-safe layouts, drag-to-reorder projects
- Background notifications and cross-tab session tracking
- Self-update + restart flow that keeps your server settings intact
- Installable as PWA with project-aware naming

</details>

<details>
<summary><strong>Desktop (macOS + Windows)</strong></summary>

- Floating Mini Chat: keep a small always-on-top assistant beside your editor, browser, or terminal
- Multiple native windows for separate projects or sessions
- Native notifications for task alerts while OpenChamber is hidden
- One-click open in VS Code, Cursor, Terminal, Finder, Explorer, and more
- Desktop host switcher for local and remote OpenChamber instances
- Convenient tunnel management without manual setup
- Deep-link connections for joining remote OpenChamber from a link
- SSH remote access with host import, connection management, and port forwarding

</details>

<details>
<summary><strong>VS Code Extension</strong></summary>

- Editor-native: open files from tool output, keep sessions beside your code
- Agent Manager for parallel multi-model runs from a single prompt
- Right-click actions: add context, explain selections, improve code in-place
- Session editor panel, responsive layout, and theme mapping to your editor
- Edit-style tool results open directly in focused diff views

</details>

<details>
<summary><strong>Customization</strong></summary>

- 18+ built-in themes with light/dark variants
- Custom themes via JSON files in `~/.config/openchamber/themes/` - hot reload, no restart
- Configurable keyboard shortcuts for chat, panels, and services
- Font size, spacing, corner radius, and layout controls
- Customizable project icons with upload and automatic favicon discovery
- Skills catalog and local skill management for reusable automation

[Read the Guide: Custom Themes](docs/CUSTOM_THEMES.md)

</details>

<details>
<summary><strong>Context & Productivity</strong></summary>

- Token usage, cost breakdowns, and raw message inspection panel
- Usage quota tracking across multiple providers with pace/prediction indicators
- Favorite model cycling via keyboard shortcuts
- Session folders and subfolders with drag-to-reorder
- Persistent project notes and todos per project
- Draft persistence per session with expanded focus mode for longer prompts

</details>

## Roadmap

Active development. Here's what's being worked on or planned:

- Linux desktop app
- Mobile app with remote instance and laptop connectivity
- More built-in tunneling options
- Kanban board for multi-agent management - keeping the human in the loop and in control
- Custom OpenCode plugins/tools built-in catalog
- Linear integration
- Built-in browser for running dev apps with agent integration

## Acknowledgments

Independent project, not affiliated with the OpenCode team.

**Special thanks to:**

- [OpenCode](https://opencode.ai) - For the excellent API and extensible architecture.
- [Flexoki](https://github.com/kepano/flexoki) - Beautiful color scheme by [Steph Ango](https://stephango.com/flexoki).
- [Pierre](https://pierrejs-docs.vercel.app/) - Fast, beautiful diff viewer with syntax highlighting.
- [Ghostty-web](https://github.com/coder/ghostty-web) - Great implementation of a Ghostty web renderer.
- [David Hill](https://x.com/iamdavidhill) - Who inspired me to release this without [overthinking](https://x.com/iamdavidhill/status/1993648326450020746).
- [My wife](https://github.com/yulia-ivashko), who - with zero AI background - sat down with the app for the first time and built the firework celebration that plays on every successful push.
- Every contributor who shaped this project with their PRs, ideas, and attention to detail.

## Contributing

See [CONTRIBUTING.md](./CONTRIBUTING.md) for development setup and guidelines.

Docs source lives in [`packages/docs`](packages/docs/README.md).

## License

MIT
