Codex Skin
Account
Get Codex Skin · Interactive macOS preview

Codex Skin.
Make it yours.

Create a custom theme for Codex Desktop with your own background, readable glass panels, restrained colors, and native controls. Preview every choice online before anything reaches your Mac.

Design your skin See examples
✓ No app bundle patching✓ One-command restore✓ Safe fallback after incompatible updates
HeiGe Codex Skin Studio running in Codex with the bright Miku 488137 theme and theme switcher openHeiGe open-source demo
Product exampleMiku 488137Bright · Playful
Examples from HeiGe Codex Skin Studio
01 / Codex Skin Studio

Design a Codex Skin.
Customize every detail.

The interactive Codex Skin preview maps each control to a limited theme token. Backgrounds and surfaces can change while native buttons, focus states, and destructive actions remain protected.

Live preview Live in your browser
Build landing page
Create a polished theme gallery and keep the editor feeling native to macOS.
C

I’ll keep the interface quiet and let the live preview carry the visual weight.

Mapp/studio.tsxInteractive theme controls
+128
Mstyles/theme.cssSafe surface tokens
+84
Ask for follow-up changes
Signed theme install commandnpx -y @getcodexskin/cli apply theme_preview
02 / Direct answer

What is Codex Skin?

Codex Skin is an independent browser-based theme studio for Codex Desktop on macOS. It combines curated visual presets, a live editor, and a reversible local installer so people can personalize backgrounds, surfaces, colors, and type without writing CSS or changing the official application bundle.

The goal is not to turn Codex into a noisy gaming dashboard. It is to make a workspace you may keep open for hours feel personal while preserving legibility, familiar controls, keyboard behavior, and system feedback. The editor therefore treats a theme as a small set of controlled design choices rather than arbitrary executable code.

01

Preview the real tradeoffs

Compare the original interface with your skin, then tune wallpaper opacity, panel transparency, blur, radius, and accent color against a working Codex-style conversation.

02

Keep native controls native

Preserve send, microphone, settings, destructive, disabled, hover, and focus semantics by default. A beautiful theme should never make the app harder to understand.

03

Make every change reversible

Themes stay in separate local storage, use signed packages, and include compatibility checks plus a restore command that returns Codex to its official appearance.

03 / Codex Skin examples

Upload an image.
Design your own Codex Skin.

Choose an image you like, then adjust the transparency, colors, and glass effect while you preview the result.

Miku 488137 theme running in Codex with the HeiGe theme switcher openLive theme
Miku 488137 in CodexA real running theme with the in-app switcher open01
Miku theme artwork from the HeiGe Codex Skin Studio repositoryTheme artwork
One image becomes a skinThe Miku artwork used to build the live theme02

Live screenshots and theme artwork are shown with attribution to the open-source HeiGe Codex Skin Studio project. Character names and visual assets remain the property of their respective rights holders and are not covered by this site's software license.

Interactive Codex Skin directions

Choose a preset below to load its palette into the live studio.

Miku 488137Bright · Electric01Genshin · NightDeep · Luminous02Genshin · DawnWarm · Airy03Deepspace · StarsViolet · Romantic04Deepspace · DawnSoft · Dreamlike05Naruto · SasukeCrimson · Electric06Naruto · HokageAmber · Energetic07Wuthering · ResonanceTeal · Ethereal08Wuthering · EchoAqua · Precise09Boss · Light UpBlack · Amber10
04 / How to get Codex Skin

How to get Codex Skin.
From preview to Codex.

Create and apply your own Codex look in four simple steps. Choose a preset or upload an image, tune the details, then run the generated command on your Mac.

Free to usePreset themes are free to preview. Unlock custom-image saving and installation by sharing once or purchasing lifetime access.
  1. 1
    Choose a preset or upload an image

    Open the studio, select a preset background, or upload your own JPG, PNG, or WebP image. The Codex preview updates as you work.

  2. 2
    Tune the look

    Adjust the background, panels, blur, opacity, accent colors, typography, and other controls until the theme feels right.

  3. 3
    Save and open Codex

    Click “Save theme & open Codex”. Codex Skin creates the theme package, copies a fallback command, and opens Codex to apply it.

  4. 4
    Run it in Codex

    Paste the command into Codex and approve local execution. The installer verifies and applies the theme, with a restore path back to the official appearance.

Support Codex Skin

Make it yours.
Keep it forever.

Preset themes are free to preview. Share once to unlock custom-image themes, or purchase lifetime access for $19.90.

$19.90optional support
Get lifetime access macOS · Apple Silicon + Intel
05 / Use it with confidence

Change the look. Keep your work private.

Codex Skin only changes how Codex looks. It is not a replacement app, and it does not read your conversations, project files, API keys, or payment details.

If a Codex update changes the interface, the installer stops safely and restores the official appearance. You can use the theme again after compatibility is updated.

06 / Questions

Codex Skin FAQ

Clear answers about installing and using Codex Skin on macOS.

What is Codex Skin?

Codex Skin is an independent visual theme studio for Codex Desktop. It lets you preview curated themes or turn your own image into a controlled theme configuration for backgrounds, surfaces, colors, type, blur, and corner radius.

Is Codex Skin an official OpenAI product?

No. Codex Skin is an independent product and is not affiliated with, endorsed by, or maintained by OpenAI. Codex and OpenAI are trademarks of their respective owner.

Which platforms will Codex Skin support first?

Codex Skin is designed for Codex Desktop on macOS, including Apple Silicon and Intel Macs. The installer keeps the experience focused on a reliable Mac workflow.

Does Codex Skin modify the Codex app bundle?

No. The installer keeps themes and state in a separate user directory and does not patch the official app bundle or its code signature. Theme packages contain controlled configuration and assets, not arbitrary JavaScript.

Can I use my own image as a Codex background?

Yes. The studio accepts JPG, PNG, and WebP images and lets you test opacity, panel transparency, blur, radius, and accent choices. Images stay local while you preview; saving uploads a processed WebP to private theme storage for signed delivery.

How do I get Codex Skin and install a finished theme?

Preset and uploaded-image themes are free to install after saving. Paste the command into Codex and approve local execution; the installer verifies, downloads, applies, and checks the signed theme package.

Can I restore the original Codex appearance?

Yes. Run npx -y @getcodexskin/cli restore. It disables reinjection, removes active theme styling, restarts Codex normally, and keeps downloaded themes available for later use.

Will a Codex Skin survive app updates?

Routine restarts trigger a structure check and reapply the active theme. If an update changes the interface structure, the installer pauses safely and returns to the official appearance until compatibility is restored.

Interactive preview available now

See your Codex workspace before you change it.

Open the studio, choose a preset or upload an image, then edit and apply your theme directly from the workspace.

Open the studio and edit