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。
#1Knowt 每月有 4,183,953 次造訪,月增率 +5.4%,定價模式為免費。PDFgear 每月有 2,845,280 次造訪,成長率 -3.4%,定價模式為免費。
| 面向/指標 | ||
|---|---|---|
| 官方網域 | knowt.com | pdfgear.com |
| 定價模式 | 免費 | 免費 |
| 每月造訪次數 | 418.4萬 (4,183,953) | 284.53萬 (2,845,280) |
| 月流量變化量 | +21.48萬 (+5.4%) | -10.05萬 (-3.4%) |
| 主要市場與市佔 | 🇺🇸 美國 (69.6%) | 🇺🇸 美國 (23.3%) |
|---|
| 每月直接造訪 | 274.15萬 | 67.51萬 |
|---|
| 使用者評分 | 4.3 | 4.5 |
|---|
| 支援平台 | 網站 | 網站 |
|---|
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.
Upload up to 30 files and Kai instantly produces notes, flashcards, summaries, and practice resources from them.
Convert Quizlet, Kahoot, Wayground, and YouTube content, or record live lectures to generate notes and study sets.
Upload class files to get a study plan and exam prediction that highlights what your professor emphasizes most.
Kai quizzes you by voice and can turn any note or flashcard into a podcast for study on the go.
適用於所有裝置的免費 AI PDF 編輯器
像在文書處理軟體中一樣編輯文件裡的文字、圖片、圖形、連結、簽名與表單欄位。
與 PDF 對話、產生摘要,從冗長或排版複雜的文件中擷取答案與文字。
在 PDF、Word、Excel、PowerPoint、TXT 與圖片之間互轉,支援批次與無損轉換。
將掃描檔或圖片型文件轉為可完整編輯的 Word 或 TXT 檔。
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。
#1專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
桌面端文件套件,為本機檔案提供進階編輯、OCR 轉換與 AI 輔助聊天功能。

Browser-based PDF workspace combining document conversion, e-signatures, and automated AI summarization tools.
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
互動式 AI 學習平台,可將課程教材轉為字卡和測驗,但包含更多影片解說。
基於雲端的檔案平台,提供強大的 PDF 編輯、格式轉換與互動式 AI 聊天功能。
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.