Run OpenAI Codex in one workspace
OpenAI Codex is powerful — but running it alongside Claude Code, Gemini CLI, and your own shell means terminal tab chaos. 1DevTool is the desktop workspace that organizes all your AI agents: named persistent sessions, per-project workspaces, 2×2 grid layouts, and built-in tools for testing the code Codex writes.
$29 one-time after beta. macOS, Windows, Linux.
Sound familiar?
Too many agents, too many windows
Codex in one iTerm tab, Claude Code in another, Gemini CLI in a third, and a shell in a fourth. Every cmd-tab costs you flow.
No unified workspace
Each AI agent lives in its own silo. There's no way to watch Codex, Claude, and Gemini work in parallel on the same repo.
Project-to-Codex chaos
Which Codex session was for which project? You're hunting through terminal tabs with cryptic titles just to find the right one.
No way to test what Codex writes
Codex just generated an API route — now you pivot to Postman, then Chrome, then your DB client, losing all context from the Codex conversation.
Lost sessions on restart
Reboot or crash, and every Codex session is gone. Re-authenticate, re-navigate, re-prompt — every time.
One workspace for all AI agents
- Run OpenAI Codex CLI alongside Claude Code, Gemini CLI, and Aider
- Named, color-coded Codex terminals — one per task or repo
- Per-project workspaces keep your Codex sessions scoped and organized
- 2×2 grid layout — watch Codex, Claude, and Gemini work in parallel
- Persistent tmux-backed sessions on macOS/Linux that survive restarts
- Built-in HTTP client, database client, and browser to test Codex-generated code in place
Everything you need for openai codex
Multi-Agent Dashboard
Run OpenAI Codex, Claude Code, and Gemini CLI side by side in a single window. Monitor progress across agents from one place.
Project Workspaces
Switch projects instantly. Each project remembers its Codex sessions, layouts, and open files.
Color-Coded Agents
Codex gets its own color. Know which agent you're talking to at a glance — no more 'which terminal was Codex again?'
Built-in HTTP Client
Test the APIs your Codex-generated code creates without leaving the workspace. Replay requests, inspect JSON, debug responses inline.
Database Client for 13 Engines
PostgreSQL, MySQL, MongoDB, Redis, SQLite, and 8 more. Inspect and seed data Codex writes — without switching to DBeaver or TablePlus.
Persistent Sessions
Tmux-backed Codex sessions on macOS and Linux survive restarts, crashes, and network drops. Resume Codex work exactly where it paused.
Frequently asked questions
Does 1DevTool include OpenAI Codex?
No. Install Codex CLI separately from OpenAI (npm). 1DevTool is the desktop workspace that runs and organizes it — along with any other CLI-based AI agent.
Can I run Codex and Claude Code at the same time?
Yes — that's exactly what 1DevTool is built for. Put OpenAI Codex and Anthropic Claude Code in a 2×2 grid and watch them work in parallel on the same repo.
What's the advantage over just using multiple terminal windows?
Organization, persistence, and context. Named terminals, color-coding, per-project workspaces, sessions that survive restarts, and an integrated HTTP client + DB client + browser for testing what Codex writes — none of which iTerm or Terminal.app offer.
Does it work with GPT-5 and newer Codex models?
1DevTool runs whatever version of Codex CLI you have installed — it does not ship the CLI itself. When OpenAI ships a new Codex release, update via npm and 1DevTool picks it up.
Do I need an OpenAI API key?
You need whatever Codex CLI itself requires (OpenAI API key or ChatGPT sign-in). 1DevTool just hosts the process — billing and auth stay with OpenAI.
Does it work on Windows and Linux, not just macOS?
Yes. 1DevTool ships native builds for macOS (Apple Silicon + Intel), Windows 10/11, and Linux (.deb + AppImage). Tmux-backed session persistence is available on macOS and Linux.
How much does 1DevTool cost?
$29 one-time purchase with a free tier. No subscription. Codex API usage is billed separately by OpenAI based on your token consumption.
Organize your OpenAI Codex workflow
Run Codex alongside every other AI agent. One workspace.
Download 1DevTool — FreemacOS available now. Windows & Linux coming soon.