Chat with Any Document Format Using AI
Upload PDF, Word, PowerPoint, Excel, text files, Markdown, or paste any URL. DocTalk parses your document, understands its structure, and lets you ask questions with cited answers — regardless of the format.
Try It FreeSupported Formats
DocTalk does not just open your file — it understands the structure, extracts the content intelligently, and preserves context for accurate AI analysis.
Full text extraction with page-level citations and bounding box highlighting. Supports scanned documents, complex layouts, and CJK characters.
DOCX
.docxParagraph and table extraction with interleaved body element iteration. Preserves heading structure and table formatting for accurate AI analysis.
PPTX
.pptxSlide content and speaker notes extraction with slide-level citations. Navigate directly to the slide the AI references.
XLSX
.xlsxTable data and cell value extraction with sheet navigation. Ask questions about spreadsheet data and get answers referencing specific cells.
TXT / Markdown
.txt / .mdPlain text and markdown rendering with full formatting support. Markdown tables, code blocks, and headings are preserved.
URL
Any web pageWeb page content extraction and analysis. Paste any URL and chat with the page content using the same citation and highlighting features.
Why Multi-Format Matters
Most AI document tools only support PDF. But your actual workflow involves far more than PDFs. You receive Word documents from colleagues, review PowerPoint presentations from clients, analyze data in Excel spreadsheets, and read web articles you want to reference later.
With a PDF-only tool, you are forced to convert every document to PDF first — losing formatting, breaking tables, and adding friction to every analysis. With DocTalk, you upload the original file and start chatting immediately.
Each format gets specialized parsing. DOCX files preserve the interleaved paragraph and table structure. PPTX files extract both slide content and speaker notes. XLSX files maintain cell relationships and sheet organization. This structured extraction means the AI understands your document the way you do, not as a flat wall of text.
How It Works
Upload
Drag and drop any supported file or paste a URL. DocTalk automatically detects the format and selects the right parser. No manual conversion needed.
Parse
The document is parsed asynchronously using format-specific extractors. Text, tables, headings, and metadata are extracted and indexed for semantic search.
Chat
Ask any question in the chat panel. The AI searches the extracted content, generates an answer with numbered citations, and lets you click to verify each one.
Format-Specific Features
Bounding box citation highlighting pinpoints the exact text region on each page. Full CJK (Chinese, Japanese, Korean) character support with proper CMap rendering.
Body element iteration extracts paragraphs and tables in their natural reading order — not as separate lists. Heading hierarchy is preserved for context.
Speaker notes are extracted alongside slide content, giving the AI access to the presenter's explanations and context that are not visible on the slides.
Table data is extracted with cell references intact. The AI can answer questions about specific data ranges and reference the source cells.
Markdown is rendered with full formatting: tables (remark-gfm), code blocks, headings, and lists. Plain text files are displayed with preserved whitespace.
Web page content is extracted and cleaned, removing navigation, ads, and boilerplate. The article content is then available for AI chat with the same citation features.
Compared to PDF-Only Tools
Most AI document chat tools only support PDF. DocTalk handles 7 formats natively.
| Format | DocTalk | ChatPDF | AskYourPDF | NotebookLM |
|---|---|---|---|---|
| DOCX | ||||
| PPTX | ||||
| XLSX | ||||
| TXT / Markdown | ||||
| URL | ||||
| Citation highlighting |
Comparison based on publicly available feature information as of February 2026.
Frequently Asked Questions
Can I upload DOCX files?
Yes. DocTalk fully supports Microsoft Word (.docx) files. It extracts paragraphs, tables, and heading structure while preserving the document layout for accurate AI analysis. Citations link back to specific sections of the document.
Does DocTalk read PowerPoint slides?
Yes. Upload any .pptx file and DocTalk extracts both slide content and speaker notes. Citations reference specific slides so you can navigate directly to the source. Slide-level citations work with the same click-to-highlight feature as other formats.
Can I analyze Excel spreadsheets?
Yes. DocTalk parses .xlsx files, extracting table data and cell values across sheets. Ask questions about your data — summarize columns, compare rows, find specific values — and get answers that reference the source cells.
Can I chat with a webpage?
Yes. Paste any URL and DocTalk extracts the web page content automatically. The extracted text is then available for AI chat with the same citation highlighting feature as any uploaded document.
What is the maximum file size?
File size limits depend on your plan: Free accounts can upload files up to 25MB (3 documents), Plus up to 50MB (20 documents), and Pro up to 100MB (unlimited documents). All plans support documents up to 500 pages.
Upload Any Document and Start Chatting
Try DocTalk free with sample documents, or sign up to upload your own. No credit card required for the free plan.