MarkItDown: turn any file into LLM-ready Markdown in 3 lines

MarkItDown is a lightweight Python library by Microsoft that converts various file formats (PDFs, Word docs, spreadsheets, images) into LLM-ready Markdown in just 3 lines of code. It solves the problem of LLMs struggling with raw binary file formats by providing a simple, unified interface for document conversion. The tool is designed to be minimal, efficient, and easy to integrate into AI workflows.

Key Points

• •MarkItDown converts PDFs, Word documents, spreadsheets, and images to Markdown format
• •Requires only 3 lines of Python code to convert any supported file
• •Solves the problem of LLMs choking on raw binary file formats
• •Created by Microsoft as a lightweight, minimal library
• •Produces LLM-ready output that can be directly fed to language models
• •Supports multiple file types with a unified conversion interface
• •Simplifies document preprocessing for AI/ML pipelines

Workflow Diagram

Concepts