Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
Library of short book summaries, analyses, and audiobooks spanning thousands of nonfiction and fiction titles.
AI tool that summarizes PDFs, videos, webpages and audio into editable mind maps and lets you chat with the source content.
Browser and mobile AI summarizer that turns articles, videos and PDFs into structured notes saved to a knowledge base.
AI text and file summarizer with paragraph or bullet output, aimed at students and writers condensing essays, reports and documents.
AI assistant to chat with, summarize and auto-fill PDFs, aimed at students and professionals extracting insights from documents.
No public pricing
No public pricing
Free trial available
- ✦Short book summaries and analysis
- ✦Summary PDFs and audiobooks
- ✦Personal library to save titles
- ✦Extensive category browsing
- ✦Coverage of thousands of books
- ✦Summarize PDFs, videos, URLs and audio into mind maps
- ✦Chat with your documents
- ✦Translation and summarization in 30+ languages
- ✦YouTube timestamps and transcription
- ✦One-click branch expansion
- ✦Export to image, PDF, Markdown or slides
- ✦One-click AI summaries of varied content
- ✦Multiple views: overview, table, mind map, timeline
- ✦Knowledge base to save and search briefs
- ✦Ask questions about saved content
- ✦Multilingual summaries and translation
- ✦Chrome and Safari/iOS extensions
- ✦Summarize pasted text, URLs, or uploaded DOCX/image files
- ✦Paragraph or bullet-point output formats
- ✦Adjustable summary length via slider
- ✦History of past summaries (premium)
- ✦Bundled access to paraphraser, essay generator, and grammar checker tools
- ✦No sign-up required for basic use
- ✦Chat across multiple documents
- ✦Instant document summaries
- ✦AI PDF form auto-filling
- ✦Document library organization
- ✦Chrome extension and mobile apps
- ✦ChatGPT and Zotero integrations
- →Learning a book's key ideas in minutes
- →Listening to book summaries on the go
- →Deciding which full books to read
- →Studying nonfiction concepts efficiently
- →Summarize long content for study or work
- →Turn videos into structured notes
- →Brainstorm and organize ideas visually
- →Digest research and documents faster
- →Summarizing articles and research papers
- →Digesting long videos and podcasts
- →Building a personal knowledge base
- →Skimming and replying to email threads
- →Condensing essays or research papers for study
- →Summarizing long reports or blog posts quickly
- →Extracting key points from scanned/image-based documents
- →Creating quick recaps of published articles via URL
- →Summarizing long reports or papers
- →Extracting data from contracts
- →Auto-filling repetitive PDF forms
- →Studying and reviewing course material