ChatPDF

Upload a document, ask questions in plain language, and get answers with page citations.

✓ Verified against chatpdf.com · Nov 4, 2026Free tierWeb

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What it does

ChatPDF is an AI tool for asking questions about your documents, chatting with PDFs and studying with an AI tutor. It has a free plan.

ChatPDF is a web app that answers questions about a document you upload. You add a file, type a question in ordinary language, and the tool replies with an answer that cites the pages it used. A side-by-side view keeps the conversation and the source document open at the same time, so you can check any claim against the original text. It is built for students working through course readings, researchers going through papers, and professionals reading contracts, financial reports, and manuals. PDFs are the main format, and the app also accepts Word, PowerPoint, Markdown, and plain text files. Folders let you put several documents into one conversation and ask questions that span them. Files can be uploaded and discussed in any language, and you can generate a link so someone else can read a shared document without an account. You can start without signing up, and the free plan covers 2 documents per day. A paid Plus plan lifts the daily document limit and adds more advanced options. Saved chat history and multi-document chats need a free account. A backend API lets developers send PDFs by upload or by public URL and build custom chatbots on top of them; questions are routed between GPT-4o and GPT-4o-mini depending on the request.

  • Question answering over uploaded documents
  • Page-level citations in answers
  • Side-by-side chat and document view
  • Folders for multi-document conversations
  • Summaries and translation of documents
  • Shareable links to individual documents
  • Support for PDF, Word, PowerPoint, Markdown and text files
  • Backend API for custom PDF chatbots

Verified facts

Each row links to the page we checked it on.
APIYeschatpdf.com✓ Nov 4, 2026
Free planYes, 2 documents per daychatpdf.com✓ Nov 4, 2026
PlatformsWebchatpdf.com✓ Nov 4, 2026
PricingFree plan plus paid planschatpdf.com✓ Nov 4, 2026
ChatPDF pricing in detail →

What you can do with it

Asking questions about your documents#1 of 6Chatting with PDFs#1 of 7Studying with an AI tutor#6 of 6Summarizing long text#6 of 19Building chatbots for your website#8 of 11

Good at

  • No account needed to try it, and a free plan is available
  • Answers link back to the pages they came from
  • Handles several document formats and works in any language
  • API available for developers building on top of it

Watch out for

  • Free plan is limited to 2 documents per day
  • The chat API keeps no state, and uploads are capped by page count and file size

Common questions

What is ChatPDF used for?
ChatPDF is used for asking questions about your documents, chatting with PDFs, studying with an AI tutor, summarizing long text and building chatbots for your website. On AIToolMaps it ranks #1 of 7 for chatting with PDFs.
Is ChatPDF free?
Yes. ChatPDF has a free plan.
What platforms does ChatPDF run on?
ChatPDF runs on Web.
Does ChatPDF have an API?
Yes. ChatPDF offers an API, so developers can use it from their own code.
What are the best alternatives to ChatPDF?
The closest alternatives are Humata, NotebookLM and Elicit, which do most of the same jobs. Humata is the closest one with a free plan.

Reviews

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Listing history

  1. Nov 4, 2026Checked against chatpdf.com
  2. Sep 30, 2026Listed