Local AI Assistant in the Browser via Explain This

The open-source extension Explain This has been released, allowing users to get explanations of selected text using the local Llama 3.2 1B model via WebGPU.

Compiled by Sergey KostenchukPublished 2026-07-30Updated 2026-09-18

2026-07-30 Coding Meta

🛠 Local AI Assistant in the Browser via Explain This

The open-source extension Explain This has been released, allowing users to get explanations of selected text using the local Llama 3.2 1B model via WebGPU. The tool works entirely on the client side, ensuring privacy without the need to use API keys.

🌍 The project demonstrates the capabilities of browser-based execution of heavy models through WebGPU and bypassing Manifest V3 limitations using the chrome.offscreen API, paving the way for full-fledged local AI assistants in the browser.

👤 The tool can be used to quickly understand complex terms or texts without sending data to external servers, which guarantees confidentiality and offline operation.

Source 1: https://github.com/Vishwamitra/explain-this

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