Markitdown Online

Markitdown Online is a web-based tool that converts various file formats (PDF, DOCX, XLSX, PPTX, HTML, images, audio, CSV, JSON, XML, TXT) into clean, structured Markdown. It is built on the open-source markitdown library by Microsoft and runs entirely in the browser, ensuring privacy. Key features include multi-format support, AI-optimized output, preservation of document structure (headings, tables, lists), fast client-side processing, and optional OCR for scanned PDFs. Use cases include preparing documents for LLM prompts, RAG pipelines, search indexing, knowledge bases, and documentation sites.