--- title: How to Use Transformers.js in a Chrome Extension | daily.dev description: A practical guide to integrating Transformers.js into a Chrome extension under Manifest V3 constraints. Covers the three-runtime architecture (background... canonical: https://daily.dev/posts/how-to-use-transformers-js-in-a-chrome-extension-cljxqw6u8 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to Use Transformers.js in a Chrome Extension | daily.dev og:description: A practical guide to integrating Transformers.js into a Chrome extension under Manifest V3 constraints. Covers the three-runtime architecture (background... og:url: https://daily.dev/posts/how-to-use-transformers-js-in-a-chrome-extension-cljxqw6u8 og:image: https://api.daily.dev/og/posts/CLJXqw6U8.png og:image:alt: How to Use Transformers.js in a Chrome Extension og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Use Transformers.js in a Chrome Extension **[Hugging Face](https://daily.dev/sources/huggingface)** · 9 min read · 1 upvotes · 0 comments ## Summary A practical guide to integrating Transformers.js into a Chrome extension under Manifest V3 constraints. Covers the three-runtime architecture (background service worker, side panel, content script), how to host AI models (Gemma 4 E2B for text generation, MiniLM for embeddings) in the background worker to avoid duplicate loads, the typed messaging contract between runtimes, an agentic tool-calling loop with tool normalization and output parsing, state persistence strategies (memory, chrome.storage, IndexedDB), and Vite build configuration for multi-entry MV3 outputs. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Multimodal Browser AI with Transformers.js for Images and Speech](https://daily.dev/posts/multimodal-browser-ai-with-transformers-js-for-images-and-speech-n61aoocbh) · Machine Learning Mastery · 1 upvotes · 0 comments - [Building Semantic Search with Transformers.js and Sentence Embeddings](https://daily.dev/posts/building-semantic-search-with-transformers-js-and-sentence-embeddings-ohtnpfpyj) · Machine Learning Mastery · 1 upvotes · 0 comments --- Tags: [#devtools](https://daily.dev/tags/devtools), [#ai-agents](https://daily.dev/tags/ai-agents), [#webgpu](https://daily.dev/tags/webgpu) [View this post on daily.dev](https://daily.dev/posts/how-to-use-transformers-js-in-a-chrome-extension-cljxqw6u8) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to Use Transformers.js in a Chrome Extension","url":"https://daily.dev/posts/how-to-use-transformers-js-in-a-chrome-extension-cljxqw6u8","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-use-transformers-js-in-a-chrome-extension-cljxqw6u8"},"datePublished":"2026-04-24T07:17:05.161Z","dateModified":"2026-04-24T07:17:31.550Z","description":"A practical guide to integrating Transformers.js into a Chrome extension under Manifest V3 constraints. 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