AI document chat
AI document chat: ask your files anything
Talk to your documents in plain language. Doxy reads every file and answers with citations, so the AI stays grounded in your sources — not its imagination.
An AI that reads before it answers
AI document chat means having a conversation with your own files instead of a model's general training data. Upload a document and Doxy turns it into clean text, splits it into passages, and uses AI to find the parts that actually answer your question — then writes a reply grounded in those passages.
Answers you can verify
A general chatbot guesses; Doxy answers from the documents you give it and shows the exact passages behind every reply. That turns AI document chat into trustworthy document Q&A — you can click straight through to the source to check any claim.
Any file, any source
Chat with PDFs, Word, PowerPoint and Excel files, images, audio, HTML, CSV, ZIP and EPUB, or paste a web link or YouTube URL. Group everything into a project and chat across all your documents at once.
Built on retrieval-augmented generation
Under the hood, Doxy uses retrieval-augmented generation (RAG): it retrieves the most relevant passages from your files and feeds them to the model so answers stay grounded. It works as a NotebookLM alternative and an AI research assistant for your own sources.
Learn more about AI document chat
If you want to understand what happens between your question and the answer, these guides go deeper. Q&A Over Your Documents With Citations shows how cited answers are built and how to check any claim against the source passage. What Is RAG? explains retrieval-augmented generation — the technique that keeps an AI grounded in your files — without the jargon. And Chat With Word, Excel & PowerPoint Files covers how Office documents, not just PDFs, become sources you can talk to. Each one is a short, practical read that ends with prompts you can reuse in your own projects.
Frequently asked questions
What is AI document chat?+
AI document chat lets you ask your own files questions in plain language. Doxy reads the documents and answers from their content, with citations back to the source.
How is it different from ChatGPT?+
A general chatbot answers from its training data and can make things up. Doxy answers only from the documents you upload and shows the passages it used, so replies are grounded and checkable.
Which files can I chat with?+
PDFs, Word, PowerPoint and Excel files, images, audio, HTML, CSV, ZIP and EPUB, plus any web link or YouTube URL.
Is AI document chat free?+
Yes. Doxy has a free plan with a monthly question allowance and a few uploads. Pro and Business plans raise the limits.
Can the AI do more than answer questions?+
Yes. On the Pro and Business plans, Doxy can turn your documents into a multiple-choice quiz or open-ended practice exercises, so you can test yourself on the material instead of only querying it. Both are generated from the sources you select, with explanations you can review.
Do I have to upload files, or can I chat with links too?+
Both work. Paste any web link or YouTube URL and Doxy fetches the page or transcript and treats it like any other source, with the same cited answers as an uploaded file. YouTube videos are read through their transcripts, so talks and lectures work too.
Start chatting with your documents
Upload a file or paste a link and ask your first question in seconds. No credit card needed to start.