How to Use the File Converter

Drop a file onto the drop zone or click it to browse. Accepted formats: .md, .html, .txt, .docx.
The tool auto-detects the format using the file extension, MIME type, and — for DOCX — magic bytes.
Select your output format from the button group: Markdown, HTML, Plain Text, Word DOCX, or PDF.
Click Convert. A preview of the result appears below.
Click Download to save the converted file. For DOCX and PDF, a small library is fetched from a CDN the first time you use that format — subsequent conversions are instant.
Click Convert Another to start fresh with a new file.

Note: Complex DOCX files — nested tables, tracked changes, custom fonts — may lose some fidelity during conversion. Basic formatting (headings, bold, italic, lists, links) is fully supported.

About This Tool

This online file converter handles conversions between the five formats most commonly needed by writers, developers, and content creators: Markdown, HTML, plain text, Microsoft Word DOCX, and PDF. Everything runs in your browser — files are never sent to a server, which means your documents stay private.

The converter uses a clean hub-and-spoke architecture that routes all conversions through HTML as the canonical intermediate format. This means adding support for a new format in the future only requires writing one "to HTML" and one "from HTML" converter, rather than a full matrix of N×N converters. Conversion libraries (marked, Turndown, Mammoth, html-docx-js, html2pdf.js) are loaded on demand the first time each combination is used, keeping the initial page load fast.