What is ChatPDF?
ChatPDF is listed under Deep Research & Documents, in the Research & Learning category on Flocci AI Tools. Chat with any PDF or document. It is freemium — a usable free tier with paid plans above it, and it lives at chatpdf.com.
What ChatPDF does
- Chat with any PDF or document
- Cited answers with page references
- Summaries and key points
- Free daily PDFs
ChatPDF — straight answers
Is ChatPDF free?
ChatPDF is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.
Can I use ChatPDF in a browser, or is there an app?
ChatPDF works in a normal browser tab with no install. It is available on the web, iOS and Android. You can sign in with a Google account.
What can ChatPDF do?
ChatPDF does 4 things the catalog singles out: Chat with any pdf or document; cited answers with page references; summaries and key points; free daily pdfs.
What is the best free alternative to ChatPDF?
MiroThinker is the closest free alternative: it sits in the same Deep Research & Documents sub-category and is free. STORM (Stanford), Tongyi DeepResearch and GPT Researcher also start free. The full list is on the alternatives page.
See the full list →ChatPDF alternatives
Compare all alternatives →ChatGPT Deep Research
Deep Research & Documents
- Runs up to ~30 min for exhaustive reports
- Browses hundreds of sources
- Structured, cited long-form output
- Limited runs on lower tiers
Gemini Deep Research
Deep Research & Documents
- Multi-step research across the web
- Editable research plans
- Long, organized reports
- Available with Gemini
NotebookLM
Deep Research & Documents
- Grounded answers from your own sources
- Audio Overviews (podcast-style)
- Mind maps and study guides
- Free tier available
AlphaSense
Deep Research & Documents
- AI search across SEC filings, earnings transcripts, broker research, private data
- Enterprise workflow automation for financial/deal research
- Integrates FactSet, S&P Capital IQ, PitchBook
STORM (Stanford)
Deep Research & Documents
- MIT-licensed open-source system that researches a topic and writes a full cited report
- Perspective-guided simulated conversations to deepen research before writing
- Co-STORM variant adds human-AI collaborative curation
- Planner and executor agents gather from 20+ web sources
- Produces cited reports exported as PDF, Word or Markdown
- Also researches local PDFs, text and Excel files
- Works with many LLM providers; Apache 2.0