vibecheck

Restyle any website with a prompt, using the AI provider you choose.

vibecheck restyles any website from a sentence. Open a site, click the vibecheck icon and describe the look you want, such as "calm dark theme with a serif headline" or "turn the menu into a grid of cards". An AI model rewrites the page's CSS and, when CSS is not enough, adds a small script that moves or rewrites elements. The result is saved for that site and applied every time you visit. How it works • The model sees an outline of the page and a screenshot of what you see. • It can inspect elements and preview its draft on the page before it finishes, so it checks contrast and layout itself. • Pick an element to restyle just that part, or paste a reference image to show the look you want. • Every site keeps its last 20 versions: roll back, turn a style off, export and import styles. Bring your own AI • Anthropic or OpenAI with an API key, your ChatGPT plan through Sign in with ChatGPT, or any OpenAI-compatible endpoint such as OpenRouter, Ollama or LM Studio. • vibecheck has no server. Requests go straight from your browser to the provider you choose. Privacy and safety • vibecheck collects nothing. Page content goes only to your chosen provider, and only when you click Restyle. • Scripts written by the model run in an isolated world without network access. • Site access is requested per site. Scripts need "Allow User Scripts" turned on for vibecheck in chrome://extensions; without it vibecheck changes CSS only. Open source: https://github.com/lebedev-nikita/vibecheck