BooksAI（Booknotes） vs Unearthed

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.

15分で1冊分の学びを、読んでも聴いても

ノンフィクションを本当に身につける詳細ガイド

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.

思考のためのスタジオ：つながるオブジェクト型ノート

Scholarcy is an AI reading assistant that turns research papers, articles, book chapters, and textbook sections into interactive summary flashcards, surfacing key findings, concepts, and referenced works so you can screen and review literature faster.

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.

音声メモ・会議・講義を構造化されたAIノートに変換

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.

必要なときに記憶を呼び戻す AI メモリーレイヤー

長文・記事・PDFをワンクリックで要約