Terminal Theme for Claude is a free claude.ai theme for Chrome: green-on-black, monospace, phosphor green. A retro terminal dark theme for Claude, pure CSS and injected locally.
Add to Chrome, it's freeFree. No account. Nothing ever leaves your browser.
A big pale panel is fine in passing, less so when you are reading and typing in it for hours. A calmer, darker surface is easier to sit with.
Your editor and shell are green-on-black monospace, and then claude.ai stands out as the one bright thing on the screen. This closes the gap so the whole setup reads as one.
Dark background, phosphor-green text: the classic terminal palette applied across claude.ai. Easy on the eyes and unmistakably retro.
Messages, inputs and interface text all set in monospace, so the whole page reads like a console rather than a chat app that happens to be dark.
The theme restyles the existing claude.ai layout without getting in the way. Buttons, inputs and controls stay where they are and keep working; only the look changes.
It is styling and nothing more. The extension injects CSS to change the appearance, reads no page content and sends nothing anywhere. Part of a family, with sibling themes for ChatGPT, Gemini and Perplexity in the same style.
Terminal Theme for Claude injects CSS and does nothing else. It reads no page content, keeps no history and sends nothing anywhere.
No account, no sign-up, no tracking. Your Claude conversations stay between you and Claude.
The full details are in the privacy policy, which is short, because there is not much to disclose.
Your day is spent in a green-on-black terminal and editor: theme claude.ai to match and the bright panel stops being the odd one out on your screen.
You like the phosphor-green console aesthetic wherever you can have it: this gives claude.ai the retro look without touching how it works.
Yes. The theme is free, with no account and no sign-up. There is no paid tier and nothing is held back.
No. It only injects CSS to restyle the page. It reads no page content and sends nothing anywhere, so your conversations stay between you and Claude.
It changes appearance, not behaviour. The theme is pure CSS restyling the existing page, so the buttons, inputs and layout keep working as before. If you ever want the standard look back, turn the theme off or remove the extension.
This one is for claude.ai. There are sibling terminal themes for ChatGPT, Gemini and Perplexity in the same style, so you can match the look across the AI chat sites you use. You can find the whole family on the NUVIX tools page at /tools.html.
Disable or remove the extension from your Chrome extensions page and claude.ai goes straight back to its standard appearance. Nothing about your account or your data is touched either way.
Thirty seconds to install, and claude.ai looks like home.
NUVIX builds focused, free tools for marketers and makers: small, sharp and doing one job properly. This theme handles the look of claude.ai; its siblings handle the rest of the workflow, and the matching terminal themes for ChatGPT, Gemini and Perplexity are on the tools page.
Browse the full family, including the other terminal themes, on the tools page.
Need hands-on help with your marketing setup? Get in touch: info@nuvix.studio