Tokenelli — Private AI Sidebar, 100% On-Device

Summarize, rewrite & chat with a private AI that runs on your own GPU. No cloud, no account, no data ever leaves your device.

Tokenelli is a private AI sidebar that runs entirely on your own computer — no server, no API, no account. Gemma 4 (2.6B parameters) runs directly in your browser via WebGPU. Your prompts and the pages you read are processed on your GPU and never transmitted anywhere. The only network request Tokenelli ever makes is the one-time model download, cached locally after first use. WHAT IT DOES Chat with a local AI in the side panel, with full multi-turn memory Summarize any page, or just your current selection Rewrite, fix grammar, translate, or shorten text in place Inline toolbar for quick actions on selected text Work presets: professional tone, bullet points, action items, and more — plus your own custom prompts Digest all open tabs at once Context menu and keyboard shortcuts (Cmd/Ctrl+Shift+G to open, Cmd/Ctrl+Shift+S to summarize) WHY ON-DEVICE Genuinely private: there's no server to log your prompts or page content — by architecture, not by policy No per-token cost: it runs on your hardware, so the core assistant is free, with no usage caps Works offline: once the model is cached, it keeps working with no network at all You control what it sees: per-site permissions with a preview before any page content is read REQUIREMENTS Chrome or Edge 116+ with WebGPU ~2 GB one-time model download on first use A GPU capable of running WebGPU — most GPUs from the last few years work; integrated graphics may be slower Tokenelli frees the model from GPU memory automatically after a period of inactivity (configurable), and recovers gracefully if the GPU driver resets. No accounts. No telemetry. No data collection. Your conversations and browsing stay on your machine.