OpenChamber

Web and desktop interface for the OpenCode AI coding agent. Works alongside the OpenCode TUI.

The OpenCode team is actively working on their own desktop app. I still decided to release this project as a fan-made alternative.

It was entirely built with OpenCode tool - first with the TUI version, then with the first usable version of OpenChamber, which I then used to build the rest.

The whole project was built entirely with AI coding agents under my supervision. It started as a hobby project and proof of concept that AI agents can create genuinely usable software.

More screenshots

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 apps versions)

• Integrated terminal
• Git operations with identity management and AI commit message generation
• Smart tool visualization (inline diffs, file trees, results highlighting)
• Rich permission cards with syntax-highlighted operation previews
• Per-agent permission modes (ask/allow/full) per session
• Multi-agent runs from a single prompt (isolated worktrees; Web/PWA + Desktop)
• Branchable conversations: start a new session from any assistant response
• Task tracker UI with live progress and tool summaries
• Model selection UX: favorites, recents, and configurable tool output density
• UI scaling controls (font size and spacing)
• Session auto-cleanup with configurable retention
• Memory optimizations with LRU eviction

Web / PWA

• Mobile-first UI with gestures and optimized terminal controls
• Self-serve web updates (no CLI required)
• Update and restart keeps previous server settings (port/password)
• Cloudflare Quick Tunnel support for easy remote access (--try-cf-tunnel)
• QR code generation for quick mobile access (--tunnel-qr)
• Auto-login URL with embedded password (--tunnel-password-url)

Desktop (macOS)

• Native macOS menu bar integration with app actions
• First-launch directory picker to minimize permission prompts

VS Code Extension

• Editor-integrated file picker and click-to-open from tool output
• In-extension Settings access and theme mapping

GitHub Actions (Cloud Usage)

Run OpenChamber remotely using GitHub Actions. No local computer required.

• Zero Setup: Runs on GitHub's infrastructure.
• Persistence: Optional; enabled when OPENCODE_SERVER_PASSWORD is set (encrypted).
• Remote Access: Access via secure tunnel (Cloudflare/Ngrok).

Read the Guide: OpenChamber for Actions

Installation

VS Code Extension

Install from VS Code Marketplace / Open VSX Registry or search "OpenChamber" in Extensions.

CLI (Web Server)

# Quick install (auto-detects your package manager)
curl -fsSL https://raw.githubusercontent.com/btriapitsyn/openchamber/main/scripts/install.sh | bash

# Or install manually
bun add -g @openchamber/web    # or npm, pnpm, yarn

openchamber                          # Start on port 3000
openchamber --port 8080              # Custom port
openchamber --daemon                 # Background mode
openchamber --ui-password secret     # Password-protect UI
openchamber --try-cf-tunnel          # Create a Cloudflare Quick Tunnel for remote access
openchamber --try-cf-tunnel --tunnel-qr              # Show QR code for easy mobile access
openchamber --try-cf-tunnel --tunnel-password-url   # Include password in URL for auto-login
OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber  # Connect to external OpenCode server
openchamber stop                     # Stop server
openchamber update                   # Update to latest version

Desktop App (macOS)

Download from Releases.

Prerequisites

• OpenCode CLI installed
• Node.js 20+ (for web version)
• cloudflared (required for --try-cf-tunnel)

See CONTRIBUTING.md for guidelines.

Tech Stack

Frontend

State & UI

Backend & Desktop

Acknowledgments

Independent project, not affiliated with OpenCode team.

Special thanks to:

• OpenCode - For the excellent API and extensible architecture.
• Flexoki - Beautiful color scheme by Steph Ango.
• Pierre - Fast, beautiful diff viewer with syntax highlighting.
• Tauri - Desktop application framework.
• Ghossty-web - for a great implementeation of a Ghostty web renderer.
• David Hill - who inspired me to release this without overthinking.
• My wife, who created a beautiful firework animation for the app while testing it for the first time.

License

MIT