Which file formats does MarkItDown support?

It supports a wide range of formats including PDF, DOCX, PPTX, XLSX, images (JPG, PNG), audio (MP3, WAV), HTML, CSV, JSON, XML, ZIP, EPUB, and YouTube URLs.

Can it handle images and scanned documents?

Yes, it features built-in OCR capabilities and can optionally use AI models to generate detailed text descriptions for visual content.

Does it require an internet connection?

Local conversion of most formats works offline, but advanced features like AI-enhanced image descriptions or YouTube transcription require API access or internet connectivity.

Is the output optimized for AI models?

Absolutely. MarkItDown creates structured, clean Markdown which is highly token-efficient and easily understood by Claude and other LLMs.

MarkItDown File-to-Markdown Converter

Name: MarkItDown File-to-Markdown Converter
Author: Zehong-Wang

byZehong-Wang

0•

Data Science & ML

Converts diverse file formats and office documents into clean, LLM-ready Markdown for improved AI processing.

MarkItDown is a versatile utility that transforms complex documents—including PDFs, Word files, Excel spreadsheets, and even multimedia like images and audio—into structured Markdown. By converting proprietary and binary formats into a text-based, token-efficient representation, it allows Large Language Models (LLMs) to ingest and process information from across your entire document library with higher accuracy. Whether you are extracting tables from research papers or transcribing YouTube videos for documentation, MarkItDown streamlines the bridge between unstructured data and AI-driven analysis.

Key Features

01Automated audio transcription and YouTube video processing

02Supports 15+ formats including PDF, DOCX, PPTX, and XLSX

03AI-enhanced OCR and image descriptions using vision models

040 GitHub stars

05Token-efficient Markdown output optimized for LLM contexts

06Extensible plugin system for custom conversion logic

Use Cases

01Converting scientific research papers and PDFs into searchable, LLM-friendly documentation

02Preparing legacy office documents for ingestion into RAG (Retrieval-Augmented Generation) pipelines

03Extracting structured data from complex Excel spreadsheets into Markdown tables for data analysis

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add zehong-wang/kosmos markitdown

For use in Claude.ai and ChatGPT

Download Skill