Convert Any Document to AI-Ready Markdown
Transform PDFs, Office docs, spreadsheets, e-books, and data files into clean, structured Markdown. Optimized for ChatGPT, Claude, and AI workflows.
Any to Markdown Conversion
Transform any document into clean, structured Markdown. PDF, Word, Excel, PowerPoint, HTML, CSV, JSON, and more.
Conversion Engine
Checking...Powered by Smarkdown API for world-class document conversion.
Privacy Mode
PDFs onlyBest quality — all documents use world-class server processing.
Smart Clean Mode
SpreadsheetsClean NaN values, add sheet separators.
25+ supported formats: PDF, Word, Excel, PowerPoint, EPUB, HTML, CSV, JSON, XML, ZIP, and more
Privacy note: All documents are processed securely and immediately deleted.
Drop files here or click to select
Supports PDF, Word, Excel, PowerPoint, and more
Lightning Fast
Server-powered processing for maximum speed and accuracy
High Quality
Preserves document structure, tables, and formatting
Batch Processing
Process multiple files and download as ZIP archive
Why Smarkdown?
Privacy First
PDFs are processed entirely in your browser. Your documents never leave your device unless you enable cloud features.
AI Optimized
Output is structured for AI tools. Clean headers, proper formatting, and preserved semantics for better AI comprehension.
Multiple Formats
Convert PDFs, Word, Excel, PowerPoint, HTML, CSV, JSON, and more. All in one place.
Supported Formats
Convert virtually any document type to clean, AI-ready Markdown. All formats processed with structure and formatting preserved.
Documents
- Word (.docx, .doc)
- EPUB e-books
Spreadsheets
- Excel (.xlsx, .xls)
- CSV data files
- Tables preserved
Presentations
- PowerPoint (.pptx)
- Legacy PPT files
- Slide structure kept
Data & Web
- HTML pages
- JSON & XML
- ZIP archives
Built For Professionals
Whether you're analyzing financial reports, researching academic papers, or preparing content for AI, Smarkdown delivers.
Accountants & Finance
Convert Excel reports and CSV exports to Markdown tables. Perfect for financial documentation and AI analysis of spreadsheet data.
Researchers & Academics
Process academic PDFs, e-books, and research papers. Extract text for literature reviews and feed directly to AI assistants.
Content Creators
Repurpose existing content from any format. Convert presentations, documents, and web pages into blog-ready Markdown.
Legal Teams
Document archival and contract analysis
Developers
API integration and automation
AI Engineers
Training data and context preparation
Knowledge Workers
Build searchable documentation
Frequently Asked Questions
Quick answers to the questions we hear most.
Is Smarkdown free?
Yes. Smarkdown is free for everyone, with no signup, no credit card, no tier limits. Convert files up to 256MB, batch up to 50 at a time, all clean modes available.
Can I use Smarkdown output with ChatGPT or Claude?
Yes, that is exactly what it is built for. Markdown is the most token-efficient format for AI assistants. The output preserves headers, lists, tables, and structure so the model can reason over your document accurately.
Are my files private?
PDFs are processed entirely in your browser using PDF.js, so they never reach our server. Other formats are uploaded to api.smarkdown.xyz, converted in memory, returned, and immediately deleted. We do not retain or read your files.
What document formats are supported?
PDF, Word (DOCX/DOC), Excel (XLSX/XLS), PowerPoint (PPTX/PPT), EPUB, HTML, CSV, JSON, XML, plain text, SRT subtitles, ZIP archives, and OCR for images (JPG/PNG/WebP). 25+ formats in total.
Is there an API?
Yes. The same engine that powers the website is available at api.smarkdown.xyz. Free, rate-limited per IP. Documentation is on the way; in the meantime, the source is on GitHub.
How is this different from CloudConvert or Smallpdf?
Three things: (1) free with no upsell, (2) Smart Clean Mode for messy spreadsheet exports (QuickBooks, Xero) that other tools do not handle, and (3) PDFs are processed in your browser so the file never leaves your device.
Have a different question? Get in touch.
Ready to Convert Your Documents?
Free, no signup required. Convert any document to clean Markdown.