Convert Anything to Pristine Markdown
Drop a DOCX, spreadsheet, CSV, Jupyter notebook, PDF, or paste a URL — and get clean, portable Markdown in an instant. All processing happens locally in your browser.
Processing happens 100% in your browser — nothing is uploaded.
Dedicated Converters
URL to Markdown
Paste any URL and instantly extract the article as clean Markdown. Powered by Readability + Turndown, processed privately in your browser.
DOCX to Markdown
Convert Microsoft Word (.docx) files to clean Markdown online. Preserves headings, lists, tables, and formatting. 100% client-side — no upload.
CSV to Markdown
Turn CSV or TSV data into perfectly formatted Markdown tables instantly. Runs entirely in your browser with PapaParse — nothing is uploaded.
Jupyter to Markdown
Convert Jupyter .ipynb notebooks to Markdown with code blocks and outputs preserved. Pure JavaScript, no Python backend, fully private.
Why MarkdownForge?
100% Client-Side
Every conversion runs in your browser using WebAssembly and Web Workers. Your files are never uploaded to any server.
Blazing Fast (INP-Optimized)
Heavy parsing is offloaded to Web Workers so the interface never freezes — even on large spreadsheets or PDFs.
Pristine Markdown Output
Battle-tested libraries like Turndown, Mammoth and SheetJS produce clean, portable Markdown you can trust.
Free & Open
No accounts, no paywalls, no tracking of your documents. Also available as an NPM SDK and an embeddable widget.
Frequently Asked Questions
Is my data really private?
Yes. MarkdownForge performs 100% of the conversion inside your browser. Files you drop are read locally with the FileReader API and processed with client-side JavaScript — nothing is transmitted to a server. The only network request is the optional URL-to-Markdown feature, which fetches the page you request through a stateless CORS proxy that stores nothing.
Which file formats can I convert to Markdown?
You can convert HTML, Word DOCX, Excel/ODS spreadsheets, CSV/TSV data, live web page URLs, Evernote/XML exports, YAML, Jupyter notebooks (.ipynb), and PDF documents. Each format has a dedicated, SEO-friendly converter page with tailored options.
Do I need to install anything?
No installation is required — it works in any modern browser. Developers can additionally install the conversion engine as an NPM package or embed the converter on their own site with a single iframe snippet.
How accurate is PDF to Markdown conversion?
PDF conversion extracts plain text using Mozilla's pdf.js. Because PDF is a fixed-layout format, complex tables and multi-column layouts may not survive perfectly — the tool clearly flags this so you can review the output.