Markitdown Online | ファイルをMarkdownに変換してAI活用
はじめに
markitdown OnlineでPDF・Word・Excel・PowerPointをブラウザだけでMarkdown変換。AIワークフロー向けに構造を保持したクリーンな出力を実現。インストール不要・プライベートで完全無料のmarkitdownツール。
Markitdown Online Converter's 概要
Markitdown Online is a privacy-first, browser-based file-to-Markdown converter from Microsoft that turns PDF, Word, PowerPoint, Excel, HTML, CSV, JSON, XML, TXT, images, and audio into clean Markdown for AI workflows. It is open-source, MIT-licensed, and designed for LLM prompts, RAG pipelines, vector databases, knowledge bases, documentation, and Git-based editing. The online converter runs fully client-side with no software installation, no account required to start, and no file uploads to a server. It preserves document structure such as headings, tables, lists, links, and formatting, and includes OCR support for scanned PDFs.
Markitdown Online Converter's 特徴
Browser-based file-to-Markdown conversion
No installation required
Client-side processing with zero server upload
Privacy-first local conversion
Supports PDF, DOCX, PPTX, XLSX, HTML, CSV, JSON, XML, TXT, URLs, images, and audio
Preserves headings, tables, lists, links, and formatting
Built-in AI OCR for scanned PDFs
Preview and download .md output instantly
Markitdown Online Converter's Q&A
Markitdown Online Converter's 価格
The online converter has a free tier with no account required to start. The free tier supports single files up to 20MB and a free account can save the 10 most recent Markdown results. The site also mentions an optional Markitdown Pro plan that increases the limit to 100MB per file and enables batch conversion of up to 30 files at once. Free accounts include 10 OCR pages per month.