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)记录了 2,537 月访问量,月度环比增长为 -24.5%,定价为免费增值。Unearthed 记录了 527 月访问量,增长率为 -84.1%,定价为免费增值。
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.
| 维度 / 指标 | ||
|---|---|---|
| 官方域名 | getbooknotes.com | unearthed.app |
| 定价模式 | 免费增值 | 免费增值 |
| 月访问量 | 2537 (2,537) | 527 (527) |
| 月度环比流量变化 | -824 (-24.5%) | -2791 (-84.1%) |
| 主要市场与份额 | 🇺🇸 美国 (69.6%) | 🇩🇪 德国 (48.7%) |
| 直接访问 / 月 | 985 | 214 |
| 用户评分 | 4.1 | 4.5 |
| 支持的平台 | 网站 | 网站 |
AI 书籍摘要,还能与任意书籍对话
为任意虚构或非虚构书籍生成简练摘要,无需读完数百页即可把握核心观点。
就书中论点、案例与经验提出个性化问题,获得基于书籍内容的回答,如同与作者交谈。
按书名搜索或描述主题,获得覆盖商业、心理学、历史、科学等方向的 AI 阅读推荐。
若书中内容不在内置书库,可上传自己的文档,让 AI 进行摘要与分析。
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.
为思维打造的工作室:以对象相连的笔记
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.
把语音备忘、会议与讲座转化为结构化 AI 笔记
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.
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.
一键总结长文本、文章与 PDF