Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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ChatDOC
✓ verifiedFree
AI assistant extracting and summarizing document info; real adoption.
90K visits/mo15K saves
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AI PDF Summarizer | Noiz
✓ verifiedFree
Free AI PDF summarizer (up to 1000 pages) with adjustable length and format, no signup required.
293K visits/mo9.0K saves
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Mapify
✓ verifiedFreemium
AI tool that summarizes PDFs, videos, webpages and audio into editable mind maps and lets you chat with the source content.
812K visits/mo9.0K saves
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Zeli
✓ verifiedFree
Lightweight digest reader that curates and summarizes trending Hacker News posts and Hugging Face papers to speed up daily reading.
36K visits/mo
Pricing
No public pricing
No public pricing
Free: $0 (30 one-time AI credits)
Basic: $5.99/mo billed yearly (1,000 credits/month)
No public pricing
Core features
- ✦Chat with documents
- ✦Instant answers with cited sources
- ✦AI analysis of selected texts/tables
- ✦Query across multiple documents
- ✦Supports various file formats
- ✦Summarize PDFs up to 1,000 pages
- ✦Adjustable summary length
- ✦Multiple formats (bullets, Q&A, essay)
- ✦Export to TXT or Markdown
- ✦No signup required
- ✦Part of a wider free AI tool suite
- ✦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
- ✦AI summaries of top Hacker News posts
- ✦Hugging Face daily paper digests
- ✦Trending/hottest post filtering including Ask HN and Show HN
- ✦Quick-scan article preview format
Use cases
- →Summarizing long documents
- →Explaining complex concepts
- →Finding key information in seconds
- →Turbocharging research
- →Summarize research papers and long PDFs
- →Quickly digest documents
- →Generate study or reference notes
- →Summarize long content for study or work
- →Turn videos into structured notes
- →Brainstorm and organize ideas visually
- →Digest research and documents faster
- →Developers keeping up with Hacker News without reading everything
- →AI researchers scanning new papers quickly
- →Tech enthusiasts wanting a daily curated digest
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