2026年9月時点で、AlphaMoatはオンデバイスAIタグの付いたAIブラウザ拡張機能を76件掲載しています。最もインストールされているのはPage Assist(ユーザー数30万)です。インストール数で並べ、毎月更新しています。
| # | 拡張機能 | 提供元 | ユーザー数 | 評価 |
|---|---|---|---|---|
| 1 | Use your locally running AI models to assist you in your web browsing. | Muhammed Nazeem | 30万 | ★ 4.8 |
| 2 | An AI based QR code reader that can effectively recognise all kinds of shaped QR codes, coloured QR codes and rotating QR codes. | - | 3000 | ★ 4.2 |
| 3 | Quick access to your favorite local LLM from your browser (Ollama). | open-os | 1000 | ★ 4.3 |
| 4 | Convert text to speech & speech to text. 50+ voices, 7 languages. Powered by Kokoro & Whisper. 100% local - data stays private. | freevoicereader | 939 | ★ 3.3 |
| 5 | Chat with the built-in Gemini Nano in your browser (free & offline). | - | 870 | ★ 2.0 |
| 6 | Use AI Video Enhancer to upscale video to 4K. Improve video quality with private, local AI in your browser. No signup. No watermarks | bettervideo | 691 | - |
| 7 | Translate selected text with Google Gemini or DeepSeek | afixer | 499 | ★ 4.6 |
| 8 | Private AI Assistant enables users to interact with language models directly in their browser without an internet connection. | - | 262 | ★ 4.0 |
| 9 | Onderceylan | 223 | ★ 4.2 | |
| 10 | Completely free and open source Chrome AI Grammar Check Extension | - | 216 | ★ 5.0 |
| 11 | AI-powered porn & NSFW blocker that blurs explicit images and text in real-time. On-device AI. Private. No data uploaded. | focusshieldapp | 143 | - |
| 12 | - | 133 | ★ 5.0 | |
| 13 | - | 124 | ★ 3.5 | |
| 14 | AI Co-Worker | Conductify | 116 | ★ 5.0 |
| 15 | - | 107 | - | |
| 16 | Enable сhrome's built-in AI capabilities. Gemini Nano will be downloaded by chrome to unblock built-in AI. | thestarkings | 105 | ★ 5.0 |
| 17 | AI-powered browser automation with Ollama, Gemini, OpenCode Go, or ChatGPT / Codex | - | 102 | ★ 5.0 |
| 18 | Detects AI-generated voice in tab audio using on-device ML | Nordvpn | 100 | ★ 5.0 |
| 19 | AI-powered chess analysis tool that integrates with Lichess™. | - | 99 | - |
| 20 | Smart Web Assistant is a Chrome extension that enhances your browsing with AI-powered insights from both cloud and local models. | - | 95 | ★ 5.0 |
| 21 | Read websites aloud with an AI model running in your browser | - | 91 | ★ 3.9 |
| 22 | A simple Browser extension for using the Prompt API. | alexewerlof | 91 | ★ 3.7 |
| 23 | Compare prices while you shop: product price checker, lowest price search and deal finder for any store. Free, no sign-up. | cupcakedev | 90 | ★ 4.7 |
| 24 | Chat with ChatGPT, Gemini, Claude, and private AIs on websites or documents. Enjoy full privacy and use your own keys for free. | nweb | 89 | ★ 3.7 |
| 25 | Rephrase selected text effortlessly with Rephraser AI – refine your writing and grammar in a single click. | - | 85 | - |
| 26 | Private AI Chatbot runs an AI model locally in your browser, ensuring full privacy with no internet or data exposure. | agatsoftware | 83 | ★ 5.0 |
| 27 | Check hardware compatibility for GGUF models on HuggingFace. Provides real-time info on your system's ability to run AI models. | - | 81 | - |
| 28 | noaibills | 80 | ★ 3.5 | |
| 29 | Oyecollective | 76 | - | |
| 30 | Free local on-device AI assistant in your Chrome sidebar: chat with any page, summarize, rewrite, translate and automate tasks. | cupcakedev | 74 | ★ 5.0 |
| 31 | Local subtitle generator that protects your privacy | localaisubtitle | 71 | - |
| 32 | - | 68 | ★ 4.7 | |
| 33 | Your web, your language! Instantly translate any site with one click. | - | 67 | - |
| 34 | cognetic | 66 | ★ 5.0 | |
| 35 | Chat with Gemini Nano — a local AI running in your browser. This is an unofficial extension. | - | 64 | ★ 5.0 |
| 36 | Polyfills for the built-in AI APIs like LanguageModel, Summarizer, and Writer. | Chromium | 60 | - |
| 37 | Free AI sidebar for any page — summarize, ask, clip one region. No signup. Use Ollama, LM Studio, BYOK, or built-in AI. | pagegrok | 59 | - |
| 38 | mioffice | 59 | ★ 5.0 | |
| 39 | Generate image with text prompt via artificial intelligence. | - | 56 | - |
| 40 | Open-source personal AI browser assistant. Chat with local or cloud LLMs, modify websites, and create widgets. Privacy-first. | codefright | 56 | ★ 4.8 |
| 41 | Reviews your Pull/Merge Requests using Ollama/LMStudio | - | 53 | ★ 1.0 |
| 42 | Get an explanation from a llama (or another local LLM) about the selected text on a website, ELI5 style. All local. | - | 51 | - |
| 43 | AI search for any webpage or PDF. Find what you mean, not just what you type. Semantic, on-device, no account needed. | - | 51 | ★ 5.0 |
| 44 | Blocks NSFW sites and filters immodest images using AI gender detection, skin analysis, and keyword heuristics. Free + Pro. | - | 51 | - |
| 45 | Harness Chrome's built-in AI for instant translation, language detection, and text summarization. | Portfoliotavm | 50 | ★ 5.0 |
| 46 | Free offline AI grammar checker & writing assistant. WebGPU-powered, 100% private. Supports 5 languages. No cloud, no subscription. | - | 45 | ★ 3.7 |
| 47 | Zero-tracking AI assistant. Chat with GPT, Claude, Gemini, or local models without subscription. | - | 44 | - |
| 48 | LocalAI provides access to web content with your authorisation, without storing it. It can be configured to use files and… | - | 41 | - |
| 49 | SwiftSurf
Introduction
SwiftSurf is an advanced & powerful Chrome extension designed to transform your browsing experience on… | - | 40 | ★ 5.0 |
| 50 | Minimal Chrome AI demo | Trysquash | 40 | - |
2026年9月時点で、ユーザー数で見ると、「オンデバイスAI」関連のChrome拡張機能の1位はPage Assist(ユーザー 30万)です。続いてAI QR Code Reader(ユーザー 3000)、open-os LLM Browser Extension(ユーザー 1000)。
ユーザー数の高い順に、上位10件は次のとおりです:1. Page Assist、2. AI QR Code Reader、3. open-os LLM Browser Extension、4. FreeVoice Reader、5. Offline Chat with AI、6. AI Video Enhancer、7. GenAI Translator、8. Private AI Assistant、9. Proofly、10. AI Grammar Checker。
AlphaMoatは76件の「オンデバイスAI」関連のChrome拡張機能を収録し、ユーザー数で順位付けしています。ユーザー数はChromeウェブストアの公開データに基づきます。データは毎月更新しており、現在は2026年9月のデータです。
このタグの付いたすべてのChrome拡張機能を、最新月のインストール数で並べています。詳しくはデータの方法論をご覧ください。