ChatPDF
Chat-with-your-documents tool that answers questions about PDFs, Word files, slides, websites and YouTube videos with page-linked citations, plus summaries and flashcards.
Evaluation
What to know
Best for
- Students studying from textbooks and papers
- Professionals checking clauses in contracts or reports
- Researchers triaging a folder of articles
Not ideal for
- Teams needing systematic-review workflows and paper discovery
- Organizations that cannot upload confidential files to a cloud service
- Users who need structured data extraction into spreadsheets
Key features
- Page-linked citations for every answer
- Folders for chatting across up to 50 files at once
- Support for PDF, Word, PowerPoint, Markdown, websites and YouTube
- Summaries, flashcards and slides generated from a document
- Works in any language, with web, desktop and mobile apps
Pros
- No sign-up needed to test it on a document
- Citations make answers quick to verify
- Very simple interface with little learning curve
Cons
- Free plan stops at two documents a day
- Plus price is not published on a pricing page and differs by region
- Answers to broad questions about long documents can miss context spread across many pages
ToolifyNav verdict
ChatPDF is the uncomplicated choice for document questions. It does one job — answering questions about documents with citations you can click — and does it with almost no setup, which is why it still attracts students and professionals years after the idea became common. Folders and support for slides, websites and video keep it current. It is not a research database, it will not discover papers for you, and its opaque Plus pricing is a small annoyance. Anyone who mainly needs to interrogate files they already have will find the free tier useful and Plus easy to justify on heavy reading days.
About
About ChatPDF
ChatPDF was one of the first tools to popularize asking questions of a PDF, and it remains a simple, focused option for students, researchers and professionals. You drop in a file and start a chat; no account is needed to try it. Answers include citations that link back to the exact page in the source, so you can check the original passage instead of trusting a paraphrase.
The product has grown beyond single PDFs. It accepts Word documents, PowerPoint files, Markdown and plain text, and can also chat with websites and YouTube videos. Folders hold several documents for one combined conversation — useful for a literature review or a stack of contracts. Besides chat, ChatPDF generates summaries, flashcards and slide outlines from a document, and its toolbox includes an AI writer and an AI detector. It works with documents and questions in any language, and there are desktop and mobile apps alongside the web version.
The company says it serves more than ten million users and answers over a million questions a day. The free plan analyzes two documents a day with page and file-size limits. ChatPDF Plus removes those limits, raises the maximum to 2,000 pages per file and 50 files per folder, and uses a higher-quality model. Plus pricing is shown only in the in-app upgrade window and varies by currency.
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