What it does

ChatGPTBox is a cross-browser extension that injects ChatGPT into your daily browsing. Hit Ctrl+B for a floating chat dialog, right-click to summarize pages, or select text for instant translation, code explanation, or polishing. It supports multiple backends—OpenAI web API, GPT-3.5/4, Claude, New Bing, Moonshot, Azure, and even self-hosted models via Ollama or OpenRouter.

The interesting bit

The privacy stance is unusually concrete: the README literally dares you to grep for fetch( and XMLHttpRequest( to verify no data collection. By default, nothing transmits until you click “Ask ChatGPT” or trigger a selection tool. That’s a refreshing inversion of the usual “trust us” model.

Key highlights

• Works on Chrome, Edge, Firefox, Safari, and Android
• Site-specific integrations for Reddit, GitHub, YouTube, StackOverflow, Zhihu, Bilibili, plus all mainstream search engines
• “Static cards” for branching conversations without losing context
• Modular design: toggle off any site adapter or bubble tool you don’t want
• Custom API endpoints and third-party format converters (litellm, one-api) supported

Caveats

• The project lineage is a fork of a fork of a fork; the README spends surprising energy tracing this genealogy
• Mobile support exists but the screenshot looks cramped; your mileage may vary

Verdict

Grab this if you want LLM assistance woven into existing workflows rather than living in a separate tab. Skip it if you already have a preferred desktop client and don’t need page-contextual features.