ExplainThis 每月有 1,463 次造訪，月增率 -54%，定價模式為免費。Sider 每月有 2,644,740 次造訪，成長率 -10.6%，定價模式為免費增值。
ExplainThis is an AI assistant delivered mainly through a Chrome extension. It summarises and explains web pages, articles and YouTube videos, and helps startup knowledge workers move through research and daily workflows faster.
| 面向／指標 | ||
|---|---|---|
| 官方網域 | explainthis.ai | sider.ai |
| 定價模式 | 免費 | 免費增值 |
| 每月造訪次數 | 1463 (1,463) | 264.47萬 (2,644,740) |
| 月流量變化量 | -1715 (-54%) | -31.42萬 (-10.6%) |
| 主要市場與市佔 | 🇺🇸 美國 (100%) | 🇺🇸 美國 (13.3%) |
|---|
| 每月直接造訪 | 428 | 169.95萬 |
|---|
| 使用者評分 | 3.9 | 4.5 |
|---|
| 支援平台 | 網站 | 網站 |
|---|
ExplainThis is an AI assistant delivered mainly through a Chrome extension. It summarises and explains web pages, articles and YouTube videos, and helps startup knowledge workers move through research and daily workflows faster.
Turn long articles and pages into a readable summary so you can decide what deserves a full read.
Get the key takeaways from YouTube videos without sitting through the entire runtime.
Primarily a Chrome extension, so it sits alongside whatever you are already browsing rather than forcing a separate app.
Built for startup knowledge workers who need context fast across marketing, sales and product research.
面向閱讀、寫作與研究的 AI 側邊欄與瀏覽器代理
常駐面板可讀取目前頁面，並用 GPT、Claude 或 Gemini 繼續追問，無需把內容複製到另一個分頁。
摘要長文章、PDF 和 YouTube 影片，提取重點，並針對原始材料提出具體問題。
翻譯網頁、PDF 和圖片，可對照雙語結果，並支援把內容朗讀出來便於行動中查看。
利用你已登入的工作階段，把比價、填表、跨站調研和收件匣整理等多步任務交給代理完成。
專項更強Anthropic 的前沿 AI 工作空間，由 Claude 5.5 驅動，擅長代理式程式開發、分析與細膩寫作。
透過瀏覽器擴充功能提供流暢的行內寫作與網頁摘要，但自訂側邊欄工具較少。
Noiz is an AI YouTube summarizer that turns any video into key ideas, timestamped notes, and readable transcripts in seconds. It runs as a browser extension plus iOS and Android apps, so you can summarize while you watch instead of switching tabs, opening a chatbot, or writing prompts.
Mochii is a browser extension and web app that puts multiple leading AI models — OpenAI, Claude, and Gemini — into a single sidebar, so you can chat, read, research, and build chatbots without jumping between tabs. It also lets you create custom AI characters, manage a personal knowledge base, and analyze PDFs, images, and webpages.
畫重點、公開學習，打造屬於你的 AI 分身
擅長進階網頁自動化與資料擷取並結合聊天，但學習曲線比 Sider 陡峭。
將書籤管理與內容創作整合至簡潔的側邊欄中，但功能比 Sider 更有限。
透過瀏覽器擴充功能提供流暢的行內寫作與網頁摘要，但自訂側邊欄工具較少。
Noiz is an AI YouTube summarizer that turns any video into key ideas, timestamped notes, and readable transcripts in seconds. It runs as a browser extension plus iOS and Android apps, so you can summarize while you watch instead of switching tabs, opening a chatbot, or writing prompts.
Mochii is a browser extension and web app that puts multiple leading AI models — OpenAI, Claude, and Gemini — into a single sidebar, so you can chat, read, research, and build chatbots without jumping between tabs. It also lets you create custom AI characters, manage a personal knowledge base, and analyze PDFs, images, and webpages.
