# How to Use Transformers.js in a Chrome Extension

DevFeed: [How to Use Transformers.js in a Chrome Extension](<https://devfeed.tech/articles/how-to-use-transformers-js-in-a-chrome-extension-7538.md>)

Original publisher: [Read original article](<https://huggingface.co/blog/transformersjs-chrome-extension>)

Author: Nico Martin

Published: 2026-04-23T00:00:00Z

Content type: tutorial

Language: en

Sources: [Hugging Face - Blog](<https://devfeed.tech/sources/hugging-face-blog.md>)

Topics: [Chrome extension](<https://devfeed.tech/topics/chrome-extension.md>), [transformers.js](<https://devfeed.tech/topics/transformers-js.md>), [gemma4](<https://devfeed.tech/topics/gemma4.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Local AI](<https://devfeed.tech/topics/local-ai.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [artificial-intelligence](<https://devfeed.tech/tags/artificial-intelligence.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [chrome-extension](<https://devfeed.tech/tags/chrome-extension.md>), [code](<https://devfeed.tech/tags/code.md>), [extension](<https://devfeed.tech/tags/extension.md>), [github](<https://devfeed.tech/tags/github.md>), [guide](<https://devfeed.tech/tags/guide.md>), [inference](<https://devfeed.tech/tags/inference.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [local](<https://devfeed.tech/tags/local.md>), [local-ai](<https://devfeed.tech/tags/local-ai.md>), [manifest](<https://devfeed.tech/tags/manifest.md>), [on-device](<https://devfeed.tech/tags/on-device.md>), [open](<https://devfeed.tech/tags/open.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [transformers](<https://devfeed.tech/tags/transformers.md>), [transformers-js](<https://devfeed.tech/tags/transformers-js.md>), [ui](<https://devfeed.tech/tags/ui.md>), [web](<https://devfeed.tech/tags/web.md>)

## AI overview

A developer guide to building a local AI Chrome extension with Transformers.js under Manifest V3. It explains an architecture with a background service worker hosting models, a side-panel chat interface, and a content script for page extraction and highlighting, using the Gemma 4 Browser Assistant as a reference.

## Source excerpt

We're on a journey to advance and democratize artificial intelligence through open source and open science.