# ChatDOC

> Chat with PDFs and documents, with answers traced to the source

ChatDOC is a web tool for asking questions about documents. You upload a file, or a folder of files, and each answer comes with footnotes that jump to the passage, table or figure it was drawn from. It parses cross-page tables, formulas and scanned pages, translates whole documents, and lets users plug in their own API key for models from OpenAI, Gemini, DeepSeek and others. Chrome and Edge extensions and a developer API are also offered.

- **Category:** AI Research Tools
- **Made by:** ChatDOC
- **Website:** https://chatdoc.com
- **Runs on:** Web, Browser extension
- **Facts last checked:** Oct 5, 2026

## Pricing

ChatDOC is a paid product with a free trial, starting at $89.9 per 360 days (a 30-day plan is also sold).

- **Pricing model:** Free trial
- **Free plan:** None.
- **Free trial:** Free account, no card needed: 10 file uploads and 100 questions in total, at most 5 files and 20 questions a day.

| Plan | Price | What you get |
| --- | --- | --- |
| Free | $0 | A one-time allowance of 10 PDF uploads and 100 questions, at most 5 files and 20 questions a day, with files of up to 300 pages and 60 MB. |
| Pro | $89.9 per 360 days; the 30-day price sits behind a toggle | 300 uploads per 30 days, 300 questions a day, no page limit, 200 MB files, and Word, EPUB, Markdown, text, scanned and website sources. |

Read from https://chatdoc.com/ on Oct 5, 2026. Prices change, so confirm with ChatDOC before buying.

## Key features

- **Cited answers with TapSource:** Each answer carries footnotes that open the passage it came from, and figures quoted in an answer can be traced back to the table or data behind them.
- **Collections:** Put files in a collection, or upload a folder, and ask questions across all of them. Free accounts can hold 30 files in a collection; Pro has no limit.
- **Tables, formulas and scans:** Recognizes cross-page tables and formulas and reads scanned files with OCR. The changelog says OCR became free for all users in December 2025.
- **Document translation:** Translates a whole PDF or Word file while keeping its layout. Free accounts can translate 3 pages per file; Pro is unlimited.
- **Bring your own model:** Besides the built-in models, users can enter their own API key to answer with models from OpenAI, Gemini, DeepSeek, Grok and others.
- **Browser extensions and API:** Chrome and Edge extensions open local files and web documents in ChatDOC. A separate API sells document parsing and question answering as prepaid packages.

## Good for

- Checking each AI answer against the passage it came from
- Reading papers and reports full of tables, formulas or scanned pages
- Asking questions across a folder of documents
- Users who want to answer with their own model API key

## Worth knowing

- The Free plan is a one-time allowance of 10 uploads and 100 questions, and it accepts PDF files only.
- The web app says it does not work on mobile and asks users to open it on a computer.
- Image analysis is a paid add-on, and GPT-4o messages are bought as separate question packages.
- Refunds must be requested within 7 days of purchase and only if Pro features have not been used.

## Works with

OpenAI, OpenRouter, Gemini, DeepSeek, Grok, Chrome, Microsoft Edge

**Tags:** Chat assistant, Research, Citations, Public API

## Alternatives

- [ChatPDF](https://toolgpa.com/tools/chatpdf): Ask questions about PDFs and get answers with citations. [Compare](https://toolgpa.com/compare/chatdoc-vs-chatpdf)
- [AskYourPDF](https://toolgpa.com/tools/askyourpdf): Chat with PDFs and other documents and get cited answers. [Compare](https://toolgpa.com/compare/askyourpdf-vs-chatdoc)
- [Humata](https://toolgpa.com/tools/humata): Document Q&A with cited answers across your uploaded files. [Compare](https://toolgpa.com/compare/chatdoc-vs-humata)
- [Anara](https://toolgpa.com/tools/anara): AI research assistant that cites the exact source passage. [Compare](https://toolgpa.com/compare/anara-vs-chatdoc)
- [Gemini Notebook](https://toolgpa.com/tools/notebooklm): Google's AI research assistant that answers from your own sources. [Compare](https://toolgpa.com/compare/chatdoc-vs-notebooklm)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 5, 2026:

- https://chatdoc.com/
- https://chatdoc.com/guide/what-is-chatdoc/
- https://chatdoc.com/guide/getting-started/chatdoc-paid-membership-plan/
- https://chatdoc.com/guide/getting-started/refunds-and-payment-issues/
- https://chatdoc.com/guide/getting-started/browser-extension/chatdoc-browser-extension-seamless-document-analysis-on-chrome-and-edge/
- https://chatdoc.com/guide/getting-started/developer-resource/chatdoc-api/
- https://chatdoc.com/guide/getting-started/llms-and-configuration/how-to-use-openai-gpt-4-models-to-read-pdfs/
- https://chatdoc.com/log/
- https://chatdoc.com/privacy_policy.html

Page: https://toolgpa.com/tools/chatdoc
Listed by ToolGPA (toolgpa.com).