Chrome extension to run DeepSeek, LLMs and Whisper locally in browser

In plain words

This Chrome extension runs generative AI models directly in the browser's side panel without sending data to external servers. It supports multiple model types including language models like Llama 3 and Qwen 2.5, reasoning models like DeepSeek R1, multimodal models like Janus, and speech-to-text via Whisper. Built with Transformers.js, it's designed for users who want local AI processing within their browser, with performance around 30 tokens per second on M1 MacBooks. The project is open source and available on the Chrome Web Store.

written from the facts on this page · September 2026

From the sources

Chrome extension for running Generative AI in your browser locally - tantara/transformers.js-chrome

In the maker’s words, at launch

Hi all, I open sourced my toy project that runs Generative AI models LOCALLY in the side panel of a Chrome extension. The Chrome extension uses Transformers.js to run models in browser under the hood. I've integrated and tested these models so far. \1. LLM: Llama 3, Phi 3.5, Qwen 2.5, SmolLM2 \2. Reasoning: DeepSeek…

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  I spent the last few days building out a nicer ChatGPT-like interface to use Mistral 7B and Llama 3 fully within a browser (no deps and installs). I’ve used the WebLLM project by MLC AI for a while to interact with LLMs in the browser when handling sensitive data but I found their UI quite lacking for serious use so I built a much better interface around WebLLM. I’ve been using it as a therapist and coach. And it’s wonderful knowing that my personal information never leaves my local computer. Should work on Desktop with Chrome or Edge. Other browsers are adding WebGPU support as well - see…

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