T3 Code — pingdotgg/t3code

Source: https://github.com/pingdotgg/t3code

Overview

T3 Code is a minimal web GUI for coding agents (currently Codex and Claude, more coming soon).

Built by pingdotgg (T3 Tools team) — the same team behind T3 Stack (Next.js + tRPC + Tailwind).

Key Stats

Metric	Value
Stars	9.7k
Forks	1.8k
Contributors	120
Commits	1,343+
Releases	36
Latest release	v0.0.20 (2026-04-17)
Primary language	TypeScript (97.9%)
License	MIT
Created	2026-02-08
Homepage	https://t3.codes

Features

• Multi-agent GUI: Unified interface for Codex and Claude Code agents
• Desktop app: Windows (winget), macOS (Homebrew), Arch Linux (AUR)
• Zero-install: npx t3 to run in browser
• Effect framework: Built on Effect RPC and layer-based startup
• Devcontainer support: Full devcontainer configuration
• Provider skill discovery: Auto-detect available agent providers
• Terminal integration: Full terminal with shell PATH hydration
• Thread management: Sidebar threads with keyboard shortcuts
• Project grouping: Configurable project grouping
• Multi-IDE support: VS Code, Kiro, Trae IDE integration
• Nightly release channel: Continuous pre-release builds

Installation

# Quick start (no install)
npx t3
 
# Desktop - macOS
brew install --cask t3-code
 
# Desktop - Windows
winget install T3Tools.T3Code
 
# Desktop - Arch Linux
yay -S t3code-bin

Prerequisites

• Codex: install Codex CLI and run codex login
• Claude: install Claude Code and run claude auth login

Architecture

• Effect RPC and layer-based startup (migrated in PR #929)
• Checkpointing system with diff queries
• Web orchestration sync with incremental events and isolated recovery
• Terminal manager on Effect runtime
• Server auth bootstrap and pairing flow

Current Status

• Very early in development — “Expect bugs”
• Not accepting contributions yet
• 758 open issues, 348 PRs

Key Contributors

• juliusmarminge (top contributor)
• t3dotgg
• shivamhwp
• Noojuno
• chuks-qua