codex pet

Codex Pet is an independent, browser-based studio built for anyone who wants to create, remix, and download custom animated pets for the OpenAI Codex desktop companion. There is nothing to install and no setup to fuss over; open your browser, and everything you need to bring a little personality to your desktop is ready to go.

The platform comes with a complete toolkit: an in-browser frame-by-frame editor lets you shape each movement by hand, live previews show your pet in action as you work, and visual quality checks help you catch rough frames before you share. Whether you start from scratch with built-in templates or remix existing community creations, building your own pet packs is straightforward and satisfying.

Instead of relying on AI generation, the studio is designed around hands-on creativity, giving you precise control over every animation state—idling, running, jumping, waving, and more. That means your pet moves exactly the way you imagined, frame by frame, so the companion on your screen truly feels like your own work.