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.
BooksAI(Booknotes)每月有 2,537 次造訪,月增率 -24.5%,定價模式為免費增值。Unearthed 每月有 527 次造訪,成長率 -84.1%,定價模式為免費增值。
Unearthed is a reading companion that collects Kindle and KOReader highlights, saved articles and RSS feeds into one searchable library and connects them to note-taking apps like Obsidian, Craft, Notion and Supernotes. It ships as open source, local desktop and mobile editions.
| 面向/指標 | ||
|---|---|---|
| 官方網域 | getbooknotes.com | unearthed.app |
| 定價模式 | 免費增值 | 免費增值 |
| 每月造訪次數 | 2537 (2,537) | 527 (527) |
| 月流量變化量 | -824 (-24.5%) | -2791 (-84.1%) |
| 主要市場與市佔 | 🇺🇸 美國 (69.6%) | 🇩🇪 德國 (48.7%) |
| 每月直接造訪 | 985 | 214 |
| 使用者評分 | 4.1 | 4.5 |
| 支援平台 | 網站 | 網站 |
AI 書籍摘要,還能與任意書籍對話
為任意虛構或非虛構書籍生成精簡摘要,無須讀完數百頁即可掌握核心觀點。
就書中論點、案例與經驗提出個人化問題,取得基於書籍內容的回答,如同與作者交談。
依書名搜尋或描述主題,取得涵蓋商業、心理學、歷史、科學等方向的 AI 閱讀推薦。
若書中內容不在內建書庫,可上傳自己的文件,讓 AI 進行摘要與分析。
Unearthed is a reading companion that collects Kindle and KOReader highlights, saved articles and RSS feeds into one searchable library and connects them to note-taking apps like Obsidian, Craft, Notion and Supernotes. It ships as open source, local desktop and mobile editions.
Import Kindle and KOReader highlights into a single searchable library, so you can find a passage without reopening every book.
Send books, highlights and daily reflections to Obsidian, Craft, Notion and Supernotes, with Capacities support in the works.
Create your own sources for quotes, ideas and facts so short-form inspiration sits beside your book highlights.
Save web articles and follow RSS feeds in Unearthed Local and Mobile so new posts appear next to your reading highlights.
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.

SoBrief is a book summary platform that condenses thousands of fiction and nonfiction titles into short, readable digests you can consume as text, audio, PDF, or EPUB. It covers bestsellers, classics, and genre fiction, and includes an app, a personal library, and multilingual reading options.
SoBrief is a book summary platform that condenses thousands of fiction and nonfiction titles into short, readable digests you can consume as text, audio, PDF, or EPUB. It covers bestsellers, classics, and genre fiction, and includes an app, a personal library, and multilingual reading options.
Summarizer.org is a free AI summarizer that condenses text, articles, essays and documents into paragraph or bullet-point summaries with adjustable length.
Summarizer.org is a free AI summarizer that condenses text, articles, essays and documents into paragraph or bullet-point summaries with adjustable length.
為思維打造的工作室:以物件相連的筆記
Paper Digest is an AI research platform that summarizes literature, generates literature reviews with citations, and delivers daily digests of new papers across arXiv, PubMed, bioRxiv and major conferences. Launched in 2018 and used by millions of researchers, it combines a citation-backed review engine that avoids inventing results with tools for reading PDFs, writing, question answering, claim verification and topic tracking.
Paper Digest is an AI research platform that summarizes literature, generates literature reviews with citations, and delivers daily digests of new papers across arXiv, PubMed, bioRxiv and major conferences. Launched in 2018 and used by millions of researchers, it combines a citation-backed review engine that avoids inventing results with tools for reading PDFs, writing, question answering, claim verification and topic tracking.
把語音備忘、會議與講座轉化為結構化 AI 筆記
OpenRead is an AI research platform that lets you search across a huge corpus of scholarly papers, ask questions of individual documents or whole collections, compare findings, and keep notes in one connected workspace.
一鍵濃縮長文、文章與 PDF