Turn one photo into a tiny installable coding companion
Built for Codex, with spritesheet.webp plus pet.json compatible with Codex custom pets. Upload, approve the character base, unlock the animated ZIP, then install it from your terminal.
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How it works
Four steps from a photo to a coding companion that lives on your desktop.
Upload
Drop any photo — a pet, an avatar, a character. JPG, PNG or WebP.
Approve the base
AI turns it into a pixel character. Approve the look, or regenerate.
Unlock the animated ZIP
9 animation states composed into spritesheet.webp + pet.json.
Install from terminal
Copy to ~/.codex/pets/ and your companion comes to life on screen.
What you get
A Codex-ready package: a transparent spritesheet plus a metadata file.
spritesheet.webp
1536 × 18729 states × 8 frames, transparent background. The exact grid Codex reads.
pet.json
metadataFour fields tell Codex how to name and locate your pet. That is it.
{
"id": "pixel-cat",
"displayName": "Pixel Cat",
"description": "A calm coding companion",
"spritesheetPath": "spritesheet.webp"
}Compatible with OpenAI Codex custom pets.
Simple pricing
Choose the plan that fits your needs. No hidden fees.
Starter
Try it out and see what PetGen can do.
- 3 pet generations
- 9 animation states
- Standard quality spritesheet
- WebP download
- Community support
Pro
For creators who want more control and quality.
- 15 pet generations / month
- 9 animation states
- HD spritesheet (2x)
- WebP + ZIP download
- Priority support
- pet.json customization
Unlimited
For power users and teams.
- Unlimited generations
- 9 animation states
- HD + 4K spritesheet
- All download formats
- Commercial use license
- Dedicated support
- Custom color palette