markitdown vs mammoth.js
Document conversion tools compared
markitdown converts a range of document and media formats into Markdown for text-analysis workflows. mammoth.js converts DOCX files into semantic HTML for JavaScript applications; both favor readable structure over visual fidelity.
markitdown: Convert Documents and Files to Markdown
MarkItDown converts documents and other files into Markdown for LLM and text-analysis workflows. It offers a Python library and command-line interface, with optional format-specific dependencies and plugins.
mammoth.js: Convert Word Documents to Clean HTML
Mammoth converts .docx files into simple, semantic HTML, with customizable mappings from Word styles to HTML elements. It suits JavaScript applications and command-line workflows, but generated HTML must be sanitized before displaying content from untrusted documents.
| markitdown | mammoth.js | |
|---|---|---|
| Language | Python | JavaScript |
| License | MIT | BSD-2-Clause |
| Stars | 188k | 6.3k |
| Forks | 13.9k | 672 |
| Last analyzed | Oct 4, 2026 | Oct 8, 2026 |
Key differences
- markitdown handles formats including PDF, Office files, HTML, images, audio, EPUB, ZIP, and YouTube URLs, while mammoth.js focuses on DOCX.
- markitdown outputs Markdown, while mammoth.js outputs HTML and also offers plain-text extraction.
- markitdown is a Python library with a command-line interface; mammoth.js is a JavaScript library for Node.js and browsers, also with a command-line interface.
- markitdown is licensed under MIT, while mammoth.js uses BSD-2-Clause.
- markitdown supports optional format dependencies, plugins, and Azure extraction integrations; mammoth.js offers configurable style maps and custom image handling.
- The projects differ in scale in the supplied figures: markitdown has 188k stars and 13.9k forks, while mammoth.js has 6.3k stars and 672 forks.
Choose markitdown if you…
- need Markdown conversion across a range of document and media formats.
- want a Python API or command-line workflow for text-analysis pipelines.
- need optional format dependencies, plugins, or Azure-based extraction integrations.
Choose mammoth.js if you…
- need to convert DOCX files into semantic HTML in Node.js or a browser.
- want configurable mappings from Word styles to HTML.
- need plain-text extraction or custom handling for images in DOCX documents.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.