A curated, chronological directory of cool projects, tools, presentations, and guides leveraging native, client-side AI APIs built directly into the web platform.
Built-in AI APIs such as the Prompt, Summarizer, and Translator APIs enable zero-inference-cost execution, absolute user privacy by design, and instant local execution without API keys.
- Official Documentation & Specifications
- Applications & Demos
- Developer Tools
- Media: Presentations, Videos & Blogs
- Contributing
- Web Machine Learning CG Explainers - The raw specifications and community issue trackers shaping future AI/ML APIs.
- Chrome Built-in AI Documentation - The Chrome team’s core entry point for developers getting started with built-in AI.
- Microsoft Edge AI Documentation - The Edge team’s documentation for developers getting started with the various APIs that are part of the built-in AI effort.
"Note: This roster tracks implementations verified as of the date listed. Entries may be periodically rolled off."
- JimakuChan Subtitles - Real-time speech recognition and translation of captions for streamers and content creators. [As of: 2026.06]
- Elk Mastodon Client and Phanpy - Deliver seamless, single-click social feed localization directly inside user timelines using the Language Detector and Translator APIs. [As of: 2026.06]
- WACAO - Summarization and translation for WhatsApp Web messages. [As of: 2026.06]
- Chrome AI Playground - An interactive sandbox allowing developers to experiment live with the Prompt, Summarizer, Translator, and Writer APIs directly in their browser. [As of: 2026.06]
- GitHub - rpbouman/chromext-image-to-text: A google chrome extension to extract text from images appearing in webpages. · GitHub - A chrome browser extension that uses built-in AI for image recognition but as well as turning screenshots of diagrams into Mermaid code. https://www.youtube.com/watch?v=0w4jdvy7ZAg [As of: 2026.06]
- GitHub - dzienisz/comment-vibe: Chrome extension that uses built-in AI (Gemini Nano) to analyse comment tone in real time and suggest kinder rewrites — 100% on-device · GitHub - Chrome extension that uses built-in AI (Gemini Nano) to analyse comment tone in real time and suggest kinder rewrites — 100% on-device - dzienisz/comment-vibe [As of: 2026.06]
- A wip project combining OCR and Translator API - Scope creep on the background-transparent proof of concept: German Glasses. Put the window on top of German text and it overlays a mostly-working English translation. PaddleOCR + Chrome Translator API, all client side and free. The web is incredible. [As of: 2026.06]
- Clean Bookmarks — AI-powered bookmark organizer - Organize your bookmarks with AI. [As of: 2026.06]
- GitHub - tao12345666333/inst-translator · GitHub - a chrome extension using built-in AI APIs for translation and other common tasks to help comprehension of text content. [As of: 2026.06]
- GitHub - tao12345666333/chrome-auto-group: Chrome extension that uses AI to automatically group tabs by content relevance · GitHub - Chrome extension that uses AI to automatically group tabs by content relevance - tao12345666333/chrome-auto-group [As of: 2026.06]
- Forulus: A zero-knowledge, local-first medical data vault. - On-Device AI: We utilize Built-in AI to organize and query your records directly on your machine. Zero network calls. [As of: 2026.06]
- GitHub - shinshin86/chrome-on-aituber: Browser-only AITuber chat app built with React and Vite. It uses Chrome Built-in AI (Gemini Nano / Prompt API) for Japanese responses, piper-plus WASM for speech synthesis, and a 4-sprite avatar for lip-sync and blinking animation. · GitHub - Browser-only AITuber chat app built with React and Vite. It uses Chrome Built-in AI (Gemini Nano / Prompt API) for Japanese responses, piper-plus WASM for speech synthesis, and a 4-sprite avatar for lip-sync and blinking animation. - shinshin86/chrome-on-aituber [As of: 2026.06]
- AI Content Filter - Chrome extension that filters articles on supported news portals (Onet — onet.pl, and The New York Times — nytimes.com) entirely on-device using the Prompt API. [As of: 2026.06]
- Chrome Prompt API Demo — Draw & Describe with Gemini Nano (On-Device AI) - Draw something, then ask the model to describe it [As of: 2026.06]
- A live narration of what's happening on your screen with built-in AI. - 画面共有からブラウザ内蔵AIが作業サマリを自動生成 [As of: 2026.06]
- GitHub - shichi343/prompt-api-live-share-demo: Prompt API demo with Screen Live Share · GitHub - Prompt API demo with Screen Live Share. Contribute to shichi343/prompt-api-live-share-demo development by creating an account on GitHub. [As of: 2026.06]
- Nano Store - A demo store showing how to combine WebMCP, and the Prompt API to have an in-site chat agent acting on your behalf. [As of: 2026.06]
- Show HN: Comment Vibe – on-device tone check using Chrome's built-in AI - Hacker news discussion regarding browser built-in AI APIs. [As of: 2026.06]
- lt502676921/oreo-homepage/built-in-ai.js - Curated relevant entry. [As of: 2026.06]
- Manual Entry - Curated relevant entry. [As of: 2026.06]
- Free Live Speech Translator - Real-time client speech translation leveraging browser built-in AI capabilities. [As of: 2026.06]
- Listen-Up Web to Podcast Converter - Web-to-podcast audio generation tool orchestrating using Summarizer and Prompt API. [As of: 2026.06]
- Chrome History Copilot - Chrome extension using built-in AI to make your browsing history truly searchable and queryable in natural language, while keeping everything private and running locally on your device. [As of: 2026.06]
- iTab New Tab Dashboard - A Chrome extension combining advanced context memory and AI-powered smart suggestions to help you write, read, translate, and summarize any web content directly in your browser. [As of: 2026.06]
- JupyterLab Browser AI - A JupyterLab and Jupyter Notebook extension powered by Chrome's built-in AI APIs providing an on-device chat provider, multimodal image alt-text generation, audio transcription, notebook markdown proofreading, and file summarization. [As of: 2026.09]
- Semantic Sticky Board (GitHub) - An interactive spatial brainstorming web app built on the experimental Semantic Embedder API that computes cosine similarity on-device in real time to automatically cluster sticky notes without cloud vector databases. [As of: 2026.08]
- AAC Board AI - An Augmentative and Alternative Communication (AAC) assistive web application leveraging built-in AI APIs for on-device communication support. [As of: 2026.08]
- HyperAudio - Intelligent Speaker Store - An e-commerce demo using on-device AI to personalize and adapt a web interface in real time based on user intent. [As of: 2026.06]
- Product Number OCR - Extracts product numbers directly from photos on-device using the multimodal Prompt API. [As of: 2026.06]
- Read-Duck - A browser extension for bilingual reading, local translation, and on-device AI summarization designed for both Google Chrome and Microsoft Edge. [As of: 2026.09]
- code.soubiran.dev - A web tool for creating and sharing syntax-highlighted code images that integrates in-browser AI (
@browser-ai/core) and an MCP server. [As of: 2026.09]
"Note: This roster tracks client-side implementations verified as of the date listed. To protect against technical rot and project pivots, entries are systematically rolled off after 12 months."
- @types/dom-chromium-ai - TypeScript definition types for the built-in AI APIs. [As of: 2026.06]
- Browser AI model providers for Vercel AI SDK - TypeScript libraries that provide access to in-browser AI model providers with seamless fallback to using server-side models. [As of: 2026.06]
- Built-in AI Skills.md - An npm package that automatically teaches your AI agent about the latest Built-in AI APIs and their polyfills. [As of: 2026.06]
- Web-AI-SDK 0.5 - Developer abstraction wrapper for browser built-in Writer, Rewriter, Proofreader and Prompt APIs. [As of: 2026.06]
- Nano Prompt UI Playground - Nano Prompt UI is a side panel chat interface for built-in AI APIs. [As of: 2026.06]
- Web AI Agent Skills - A maintained collection of agent skills for building with browser-native Prompt, Language Detector, Translator, Writing Assistance, Proofreader, WebMCP, and WebNN APIs. [As of: 2026.09]
- Prompt API Observability & Telemetry - A proof-of-concept by Rakuten Analytics demonstrating how to instrument
window.LanguageModel(Prompt API) to emit OpenInference spans and stream traces to OTLP backends like Langfuse or LangSmith. [As of: 2026.08] - Browser AI Toolkit - A unified toolkit wrapping browser built-in AI APIs including the Prompt, Translator, Writer, and Summarizer APIs. [As of: 2026.06]
- Spectacular SvelteKit Template - A full-stack Turborepo and SvelteKit starter template featuring built-in AI components (Summarizer, Proofreader, and Prompt APIs). [As of: 2026.07]
An educational library of community tutorials, deep-dives, and tech talks.
- [2024.10] Smart Form Filler - Spice Up Your Forms With Generative AI and LLMs - A practical deep-dive into how the Prompt API enables zero-inference-cost, offline-ready form filling, leveraging the latest mobile LLMs like Gemini Nano for superior UX and privacy.
- [2026.06] Presentation in Chinese for Hangzhou Developer Meetup talking about AI, the web, and web standards. The talk touches upon built-in AI APIs and WebNN. - by Hidde de Vries (Logius). Does the Web need AI or does AI need the Web? Well, both! And we are going to need standards to make the two work better together... [As of: 2026.06]
- [2025.10] フロントエンド開発のためのブラウザ組み込みAI入門 / Introduction to Browser Built-in AI for Frontend Development - A deep dive by Masashi Hirano analyzing client-side AI integration strategies, comparing heavy WASM-delivered models against zero-dependency, browser-native inference.
- [2026.05] Built-in AI and WebMCP – The AI Revolution Right In Your Browser! - An architectural overview demonstrating how the Model Context Protocol (MCP) connects local browser-native LLMs directly to client-side developer tooling and databases safely.
- [2026.06] In-browser AI Agent Demo with WebMCP and Prompt API - A video recording of a walkthrough session to demo the combination of WebMCP and Prompt API to achieve on site Agent [As of: 2026.06]
- [2026.06] Chrome extension to hide news topic with Prompt API - Built a @googlechrome extension with Prompt API + Gemini Nano 👇 It hides news topics you don't care about - fully on-device, no cloud, works offline. #AI #Chrome [As of: 2026.06]
- [2026.05] Google I/O 2026 Web AI Talks & Web AI Summit Talks - Official conference talk playlists covering the latest Chrome Built-in AI APIs, client-side model execution, and production case studies. [As of: 2026.06]
- [2026.06] Chrome Built-in AI（Gemini Nano）だけで利用規約チェックはできるのか検証してみた / Verifying if Chrome Built-in AI (Gemini Nano) Alone Can Check Terms of Service - A highly practical validation study testing the local context window constraints of the Prompt API to analyze and extract cancellation policies from dense legal documents.
- [2026.05] 【Chrome組み込みAI】ブラウザでGemini Nanoを動かす！Web開発を劇的に変える「Built-in AI」の最新動向と活用法 / 【Chrome Built-in AI】 Running Gemini Nano in the Browser! Latest Trends and Practical Use Cases of "Built-in AI" Dramatically Changing Web Development - A comprehensive architectural deep-dive analyzing offline privacy boundaries, JSON Schema structured output enforcement, and multi-device routing via Hybrid Inference.
- [2025.07] 爆速で動作する翻訳・要約Chrome拡張を作った / Built a Blazing-Fast Translation and Summarization Chrome Extension - A practical introduction to a local English-to-Japanese translation and summarization extension using Chrome's built-in Gemini Nano model, highlighting the zero-network latency and sub-second response times made possible by browser-native inference.
- [2025.07] Google I/O 2025 注目のWebフロントエンド技術 / Google I/O 2025 Featured Web Frontend Technologies - A comprehensive overview of the latest web frontend technologies announced at Google I/O 2025, including Chrome Built-in AI, by the lead front-end developer for Yahoo! Chiebukuro.
- [2025.05] Zennの記事一覧からAI関連の記事をAIの力によって滅ぼし、そして私も消えよう / Using AI to Eliminate AI Articles from Zenn, and Then Disappear Myself - A comprehensive technical deep dive into architecting a client-side Chrome extension using the native Prompt and Summarizer APIs, detailing production strategies for local LLM challenges like latency, formatting breakage, and logical contradictions.
- [2026.06] サーバーに何も送らないエレベーターピッチビルダーを Chrome Built-in AI で作る | 天使やカイザーと呼ばれて - Chrome Built-in AI API だけで動くエレベーターピッチビルダー [As of: 2026.06]
- [2026.06] Chrome Built-in AIとWASMでブラウザ完結のAITuberチャットアプリを作った - an article detailing how Yuki Shindo built an AITuber chat app using built-in AI and Wasm for voice generation. [As of: 2026.06]
- [2026.06] Chromeの組み込みAIに画面共有してデスクワークを実況させる - An article by Shichi from Brainpad detailing how they built a live narrator for screencasting using built-in AI. [As of: 2026.06]
- [2026.06] Build new features using built-in AI in Chrome - A write-up of the talk given at Google I/O 2026 by Thomas Steiner on built-in AI APIs. [As of: 2026.06]
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License: CC0-1.0