Cozy Studio
GitHub

Cozy
Studio

Your ideas, freshly brewed.

A local image studio for the ChatGPT, Grok or Antigravity account you already have.

Install Cozy Studio See how it works
A giant black cat attacks a city in a painted fifties sci-fi movie poster b-movie poster
A giant black cat over a city in a psychedelic Japanese pop poster pop theater poster
A giant black cat seen through a thermal camera, glowing over the city thermal camera
A giant black cat and a city as a jewel-toned stained glass window stained glass
A giant black cat in a Soviet constructivist film poster constructivist poster
A giant black cat over a city as an old apocalypse woodcut woodcut

How it works

From idea to picture in three steps.

  1. 01

    Describe it

    Plain words, and a reference picture if you like.

  2. 02

    Pick a style (or skip this step)

    Film, paint, anime, print, pixel art.

  3. 03

    Generate and keep it

    Every picture lands in your library and in the folder you choose.

Create: prompt, references, format and image controls beside an existing resultCreate: prompt, references, format and image controls beside an existing result
Style catalog: browse animation sample cards beside the Create canvasStyle catalog: browse animation sample cards beside the Create canvas
Library: search saved images and browse a mosaic of resultsLibrary: search saved images and browse a mosaic of results

Styles

A hundred styles, ready to go.

A starter collection of about a hundred styles comes installed. Use one, or mix up to five.

  • Studio Headshot style sample Studio Headshot
  • Kodak Portra 400 style sample Kodak Portra 400
  • Film Noir style sample Film Noir
  • 80s Sci-Fi style sample 80s Sci-Fi
  • Feature Animation Path Tracer style sample Feature Animation Path Tracer
  • Isometric 3D style sample Isometric 3D
  • Watercolor Storybook style sample Watercolor Storybook
  • Art Deco Poster style sample Art Deco Poster
  • Oil Painting (Classic) style sample Oil Painting (Classic)
  • Impressionist Oil style sample Impressionist Oil
  • Digital Painting style sample Digital Painting
  • Vector Art (Flat) style sample Vector Art (Flat)
  • Vincent van Gogh style sample Vincent van Gogh
  • Joseph Cornell style sample Joseph Cornell
  • Stained Glass style sample Stained Glass
  • Gothic Jewel style sample Gothic Jewel
  • Barbarian Oil Cover Painting style sample Barbarian Oil Cover Painting
  • Illuminated Monster Codex style sample Illuminated Monster Codex
  • Rusalka Moonlit Lake Illustration style sample Rusalka Moonlit Lake Illustration
  • Vagabond style sample Vagabond
  • Makoto Shinkai 5cm style sample Makoto Shinkai 5cm
  • Satoshi Kon style sample Satoshi Kon
  • Akira style sample Akira
  • Saul Bass style sample Saul Bass
  • Hugo Pratt style sample Hugo Pratt
  • Ori and the Blind Forest 2015 style sample Ori and the Blind Forest 2015
  • Steampunk style sample Steampunk
  • Satpunk style sample Satpunk
  • Art Deco style sample Art Deco
  • Static-Grass Scenic Layout style sample Static-Grass Scenic Layout
  • Ethereal Fantasy style sample Ethereal Fantasy
  • Balloon Art style sample Balloon Art
  • Dieter Rams style sample Dieter Rams
  • Leonetto Cappiello style sample Leonetto Cappiello
  • Blind Box Art Toy style sample Blind Box Art Toy
  • Fire & Magma style sample Fire & Magma
  • Flung-Ink Splash style sample Flung-Ink Splash
  • Stencil Duotone style sample Stencil Duotone
  • Opaque Planes style sample Opaque Planes
  • Fire-Lookout Tower Vigil style sample Fire-Lookout Tower Vigil

Providers

Sign in with what you already use.

Cozy Studio makes images through your own account and its allowance, so your provider’s limits still apply. Google works too, with an API key.

ChatGPT

Sign in from Settings. Uses your plan’s allowance.

recommended

Codex

Needs the Codex app. Uses your Codex allowance.

Grok

Sign in with xAI or your Grok Build login.

Antigravity

Nano Banana, through your Antigravity login.

Install

Install Cozy Studio.

Free and open source. Needs Git and Bun.

terminal

git clone https://github.com/gvastethecreator/cozy-studio Downloads the code
Cloning into 'cozy-studio'… done.
cd cozy-studio Opens the folder
bun install Installs dependencies
✓ dependencies installed
bun run studio:onboard --setup Checks what is missing
✓ ready to set up
bun run studio:init Creates your library
✓ library created
bun run dev Starts the app
➜ Cozy Studio is running at localhost:17222

open localhost:17222 and sign in from Settings

Agent-ready

Already using a coding agent?

Paste this. It installs Cozy Studio and makes your first picture.

Set up Cozy Studio from github.com/gvastethecreator/cozy-studio, then make me a giant black cat over a city as a stained glass window.

Works withCodexClaude CodeCursor

  1. you

    Set up Cozy Studio from github.com/gvastethecreator/cozy-studio, then make me a giant black cat over a city as a stained glass window.

  2. Reads AGENTS.md and the setup skill setup plan: 4 commands The repo tells the agent how to set it up
  3. bun install ✓ dependencies installed Installs what the app needs
  4. bun run studio:onboard --setup ✓ ready to set up Checks your setup and asks before changing anything
  5. bun run studio:init ✓ library created Creates your library and settings
  6. bun run dev ➜ running at localhost:17222 Starts Cozy Studio
  7. Sign in to ChatGPT in Settings you ✓ signed in The one step that stays with you
  8. Makes the picture with ChatGPT ✓ 1 picture · stained glass Uses the style and the prompt you gave it
  9. SavedPictures/Cozy Studio/2026-09-29_harry-clarke_giant-black-cat-taller-than-skyscrapers.png

Before you start

Good to know.

What is free?

Cozy Studio is free and open source under the MIT license. Making images goes through your provider account, so its plan, limits and terms still apply.

The app, your library, your settings and every picture you keep. When you generate, the prompt and any reference pictures go to the provider you picked.

A ChatGPT account is the easiest start. Codex, Grok and Antigravity sign-ins work too, and Google works with an API key.

Windows and macOS, with Git, Bun and a browser. Linux is best effort.

The troubleshooting guide in the repository covers the usual problems. For anything else, open an issue on GitHub.

Go create something.

Free and open source. It runs on your computer.

Install Cozy Studio Star on GitHub