A free, open-source Markdown editor and document converter that runs entirely in your browser. Import PDF, Word, PowerPoint, Excel, CSV, HTML, JSON, EPUB, or XML files and convert them to Markdown. Features GFM tables, KaTeX math, Mermaid diagrams, tabbed workspace with IndexedDB persistence, and export to PDF, DOCX, HTML, plain text, or raw Markdown. Your files never leave your device.
Key features include a split-pane editor with live preview, drag and drop file import, command palette, find and replace with regex, document statistics with readability scoring, custom snippets, focus mode, word count goals, and three themes (light, sepia, dark). All processing happens locally — no servers, no tracking, no analytics.
Supported import formats: Markdown (.md, .markdown), plain text (.txt), PDF (.pdf), Word (.docx), PowerPoint (.pptx), Excel (.xlsx), CSV (.csv), HTML (.html, .htm), JSON (.json), XML (.xml), EPUB (.epub), and RTF (.rtf). Supported export formats: Markdown, PDF, Word (.docx), HTML, and plain text (.txt).
The editor is a Progressive Web App (PWA) and works offline once installed. It is licensed under the MIT license and the source code is available on GitHub at github.com/Depends-iT/dependsit-markdown-studio.