AlphaMoatによると、2026-09時点でChrome拡張機能ExplainTXTのユーザー数は248(前月比 +6%)、評価は4.2(8件のレビュー)で、9,324件のAIブラウザ拡張機能中2,946位、汎用AIでは2,418件中725位です。
Highlight text to explain or summarize it, or summarize the whole page with one shortcut. Your on-site AI assistant. ExplainTXT — any page, explained.
Press ⌘⇧E (Ctrl+Shift+E on Windows) on any website:
Prefer the mouse? Highlight text and pick Explain or Summarize from the menu, or click the toolbar icon to summarize the page. ⌘⇧S also summarizes the page.
The answer opens in a sidebar right where you're reading. Ask follow-up questions without leaving the page. Choose your language and text size from your dashboard at explaintxt.com.
Works on articles, docs, contracts, emails, forums — anywhere there's text.
ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write.
+ 比較Change default search engine to ChatGPT search.
+ 比較One stop AI Assistant with GPT, Claude, Gemini: Chat, Write, Translate, Search, Summarize, image generator, video generation
+ 比較Summarize YouTube videos, web articles, and PDFs to save time, powered by ChatGPT, Claude, Mistral AI, and Gemini.
+ 比較データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。