Custom AI-generated Codex Pets are coming soon. Join the waitlist for early access.

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Make and Download Custom Codex Pets

Browse ready-made Codex Pets now, then DIY your own AI-powered pet package when early access opens.

Pixel CoderReady
A friendly pixel coder companion with spiky hair, blue eyes, and a green hoodie.
What's included

Free Downloads for Codex Pets

Each free Codex Pet package includes a manifest, preview image, sprite atlas, source sheet, and validation data.

Browse Free Downloads

pixel-coder.zip

  • +pet.json
  • +preview.png
  • +spritesheet.png
  • +source-sheet.png
  • +validation.json

What are Codex Pets?

Codex Pets are animated companions that live as floating overlays inside the Codex app. They appear alongside your active Codex sessions, moving and reacting as your tasks run.

Built-in pets are available directly in Codex under Settings > Appearance > Pets. Custom pets can be added as downloadable packages. CodexPets.net provides original custom pet examples you can browse, download, and use.

How to Use Codex Pets

Get up and running in four steps.

Step 1

Free download

Choose a pet and download the ZIP package.

Step 2

Extract the package

Unzip the folder and keep the included pet.json nearby.

Step 3

Add it in Codex

Open Settings > Appearance > Pets and add the extracted package.

Step 4

Use /pet in the composer

Type /pet to wake or tuck away your active pet at any time.

AI Generation - Coming Soon

Make Your Own Codex Pet with AI

Describe your dream Codex Pet and join the waitlist for early DIY pet generation. While the generator is being prepared, browse the starter pets and study the package format.

Pixel Coder

Golden Leader

Hoop Duck

Dad Coder

DIY Your Pet

Frequently Asked Questions

What are Codex Pets?
Codex Pets are animated companions that appear as floating overlays inside the Codex app. They sit alongside your coding sessions and react to active tasks.
Is CodexPets.net affiliated with OpenAI?
No. CodexPets.net is an independent community resource and is not affiliated with, endorsed by, or connected to OpenAI in any way.
How do I add a custom pet to Codex?
Download a pet package from this site, unzip it locally, then go to Settings > Appearance > Pets inside the Codex app.
Can I use /pet to wake or hide my pet?
Yes. Typing /pet in the Codex composer will wake or tuck away your active Codex Pet. You can also use the command palette.
Are the downloads free?
Yes. All starter pet packages on CodexPets.net are free for personal use.
When will the AI Pet Generator be live?
We are working on it. The AI generator is not live yet. You can visit the AI Generator page to join the early access waitlist and see concept previews.
How do I create my own custom Codex Pet?
The upcoming AI Pet Generator will help you describe a pet idea and turn it into a ready-to-download package with preview, manifest, spritesheet, and validation assets.