GPT Skin

Free online skin generator

Create Your Custom GPT Skin — Including Codex Dream Skin

Upload any image, tune the visual treatment, then preview your custom skin inside a real desktop-style workspace. GPT Skin builds a complete macOS Codex Dream Skin Studio installer locally in your browser, with no account and no image upload to our server.

Create Your Own GPT Skin Browse Featured Skins
  • Runs locally
  • No sign-up
  • Installable macOS ZIP

Real skin, reversible install

The download includes the complete Codex Dream Skin Studio runtime, your image, the generated theme configuration, verification tools, and a one-click restore path.

Online theme studio

Generate Your GPT Skin Now

Choose a starting mood or upload your own image. The finished ZIP bundles the official Dream Skin Studio workflow and is created on this device.

Theme controlsLocal only
Or start with a mood

Ready to preview. Add an image or use a built-in mood.

Violet RainFloating particles

LIVE PREVIEW

What will your workspace feel like?

Test contrast, focus, and atmosphere before you install anything.

Preview your theme behind real interface density...

+Local

Ten complete skin ideas

Not wallpapers. Entire Codex worlds.

Ten visual references showing how far a complete Codex skin can go. These are inspiration images only; upload your own artwork in the generator above to create a downloadable pack. The gallery never changes your current preview or download.

Complete Comic Workshop Codex skin with themed sidebar, banner, cards, projects, and composer Complete Moonlit Ink Codex skin with ink-wash banner, paper cards, sidebar, and composer Complete Botanical Archive Codex skin with greenhouse banner, organic cards, sidebar, and composer Complete Neon Expedition Codex skin with command sidebar, sci-fi banner, telemetry cards, and composer Complete Rainy Vinyl Codex skin with warm listening-room banner, music projects, dark cards, and composer Complete Noir Cabaret Codex skin with theatrical stage banner, red spotlight accents, sidebar, and composer Complete Bauhaus Signal Codex skin with primary geometry, functional cards, structured sidebar, and composer Complete Paper Playground Codex skin with scrapbook stripes, pastel cards, dashed borders, and composer Complete Orbital Academy Codex skin with geometric space-campus banner, friendly project cards, sidebar, and composer Complete Abyssal Observatory Codex skin with bioluminescent sonar banner, deep-sea cards, sidebar, and composer

Start with the real question

Design, install, compare, or repair.

A theme is more than a wallpaper. Choose the path that matches what you need today, and keep compatibility work scoped to the app you actually run.

01

Codex Skin Generator

Build a Codex-focused pack with a live coding workspace preview and current installation guidance.

 02

ChatGPT Theme Builder

Create a reusable visual layer for the ChatGPT desktop workspace without changing the official app here.

 03

Claude Desktop Theme Tool

Prototype Claude colors and imagery locally while keeping installation claims platform-specific.

 04

Electron custom CSS guide

Learn what can be shared across Electron apps and what must stay inside a maintained adapter.

More than a wallpaper

A useful skin protects the work underneath.

The visual idea matters, but the quality test is whether Codex still behaves like Codex.

What “theme” means here

A GPT Skin download combines your artwork and theme configuration with the complete Codex Dream Skin Studio runtime. The same package styles the live sidebar, home banner, suggestion cards, project selector, task background, composer, borders, and accent system while keeping those controls native and interactive.

The included adapter validates the official Codex process, connects only through local loopback CDP, leaves decoration non-interactive, preserves keyboard focus and window resizing, and creates a reliable restore launcher. It never replaces the official application bundle or its signed code.

If you are new to the trend, begin with the plain-English Codex Dream Skin overview. If you already know what you want, use the generator above or open the dedicated Codex tool.

Why generation stays inside the browser

Theme artwork can be personal: a family photo, private workspace image, licensed illustration, or client-owned asset. The first GPT Skin release reads that file locally and builds the download on the same device. There is no account, image library, or server-side generation queue.

Local processing also makes the output easier to trust. The ZIP is inspectable, the manifest records the theme you selected, and the included MIT-licensed runtime contains the same install, verify, customize, and restore scripts used by Codex Dream Skin Studio.

Why the tool stays separate

Your design can survive an app update.

Desktop app structure can change after an update, so the generated ZIP includes Dream Skin Studio's verifier, signature checks, loopback ownership checks, and restore workflow instead of an unsupported CSS snippet.

The first installable release targets the official macOS Codex Desktop app. ChatGPT and Claude theme pages remain educational until they have equally reviewed adapters.

Read the complete creation guide