ChatDOC

ChatDOC is an online document assistant for asking questions about PDFs, office files, and other text documents. It is best suited to readers who need answers they can trace to source pages; its upload quotas and internet requirement make it less suitable for offline or high-volume work.

Overview

ChatDOC supports natural-language conversations to summarize, extract, locate, analyze, and rewrite document content. It handles PDF, Word (.doc and .docx), Markdown, ePub, TXT, and scanned documents, giving it a broad range for research materials and everyday paperwork. Folder uploads allow questions across multiple files at once, which is useful when an answer depends on a collection rather than a single document.

Citations are a practical strength: answers can point to pages and references, jump to highlighted passages, and mark numerical values. That makes it easier to check an answer against its source, though citations do not remove the need to verify the interpretation. Processing requires an internet connection. ChatDOC's servers are in the United States, and information may be processed in the United States and other countries. Its privacy policy describes technical and organizational safeguards while acknowledging it cannot guarantee complete security for internet transmission or stored information.

Key features

Document conversations and citations

ChatDOC can summarize, find, analyze, extract, and rewrite material through natural-language prompts. Page and reference citations, highlighted text jumps, and highlighted numerical values are valuable for readers who need to audit answers or locate evidence quickly. Scanned-document support extends that workflow to image-based files.

Queries across multiple files

Folder uploads and multi-document chat let users query several documents together. This is a meaningful advantage for comparing or synthesizing a document set, but the free plan's small upload allowance is likely to constrain sustained use.

Developer integration

The API can bring document processing and generated responses into other applications. The PDF Parser API also recognizes text, tables, and images and can convert PDF content into structured formats such as JSON. That makes ChatDOC relevant beyond individual document reading, particularly where an application needs structured PDF extraction.

Pricing

The free plan costs nothing. It allows 5 uploads/day and 10 total, with 20 questions/day and 100 total; files are limited to PDF, 300 pages per file, and 60 MB. This is enough to evaluate a small set of PDFs, but the lifetime totals and format restriction make it a poor fit for regular work or mixed file types.

Pro monthly costs $8.99 a month, billed 30 days. It includes 300 uploads/30 days, 300 questions/day, unlimited pages per file, a 200 MB maximum file size, and 500 OCR pages/30 days. Pro annual costs $89.90 a year, billed 360 days, with the same quotas and file limits. Both paid plans remove the free plan's page ceiling and support larger files, but OCR remains capped and uploads remain limited. Annual billing is lower than paying the monthly rate across twelve months, though its stated billing term is 360 days rather than a calendar year.

Platforms

ChatDOC is available on the web, as a browser extension, and through an API. It is not an offline document processor: an internet connection is required to analyze files.

Who it's for

ChatDOC is a strong fit for researchers, analysts, and other readers who work across document collections and need to check generated answers against source passages. Developers can also consider it when they need document conversations or PDF content converted into structured data. It is less suitable for people who need offline processing, generous free use, or uncapped OCR.

Pros and cons

• Pros: Page and reference citations, highlighted passages, and numerical-value highlights support answer checking.
• Pros: Folder uploads and multi-file chat help users query a document set in one workflow.
• Pros: Broad format support includes scanned documents, while the PDF Parser API can extract text, tables, and images into structured formats.
• Cons: The free plan is limited to PDFs, 10 total uploads, and 100 total questions, so it is mainly an evaluation option.
• Cons: Paid plans cap OCR at 500 pages/30 days and uploads at 300/30 days, which may restrict document-heavy workflows.
• Cons: Processing is online, and information may be handled in the United States and other countries.

Alternatives

ChatPDF is worth considering if broader platform availability matters: it supports Android, iOS, Linux, macOS, Windows, web, and API, and its free plan allows 2 documents/day. Its ChatPDF Plus plan offers unlimited document analysis and advanced features.

Anara may suit users who want connectors to Google Drive, Notion, and OneDrive. Its Pro plan costs $20 a year and includes 4x more AI usage than Plus, uploads up to 300MB or 10,000 pages, and 50 collaborators.

AskYourPDF is another freemium option with Android, iOS, browser extension, web, and API access. Its Premium plan costs $11.99 a year and includes limits of 2,500 pages per document, 31MB per upload, 50 documents per day, and 1,200 questions per day.

Audeus is an alternative for readers looking for a document-focused text-to-speech app with a free plan and mobile and browser-extension access.

DeinPDF offers a pay-as-you-go option with a 0.00 EUR monthly base fee, 0.50 EUR starting credit, top-ups from 10 EUR, and usage-based charges.

DeepPDF has a free plan limited to 10 PDFs and 5 MB per PDF, plus a beta Pro plan at no cost with 200 PDFs, 50 MB per PDF, and unlimited AI and features.

docAnalyzer may be a better match for users seeking a web and API document-analysis service with a Community plan that includes chat, notes, monthly credits, and no API access; its Basic plan costs $8 a month.

Doxy is a web-only option with a free plan of 3 documents, 20 questions/month, and 10 MB per file, or a $4.99 a month Pro plan with 100 documents, 1,000 questions/month, and 50 MB per file.

For a wider shortlist, browse AI PDF Assistants or AI PDF Tools.

Verdict

Choose ChatDOC if you need to ask questions across document collections and want answers tied to verifiable passages, or if its PDF Parser API fits an integration project. Look elsewhere if offline access, high free-plan volume, or more generous OCR limits matter more than citations and multi-file conversations.