docu.md Markdown Viewer Documentation
August 4, 2026 ยท View on GitHub
Preview Markdown. Preserve the complex parts. Export finished documents.
docu.md Markdown Viewer opens Markdown files as polished reading pages and turns them into output you can share, submit, publish, or archive. It keeps the source file simple while preserving the parts that usually break during handoff: tables, images, code blocks, math, diagrams, themes, and document spacing.
What This Documentation Covers
This documentation explains how to install docu.md, open Markdown files, configure platform-specific settings, choose document themes, and export finished documents.
Use it when you need to understand:
- How each platform version works.
- Which setup steps are needed for local files or editor integrations.
- How preview, export, themes, and privacy behave.
- Which output formats are available in each environment.
- How to troubleshoot rendering, permissions, or export issues.
Start Here
Platform Guides
| Platform | Best For | Guide |
|---|---|---|
| Chrome / Chromium | Opening local or online Markdown in the browser | Chrome Extension |
| Microsoft Edge | Edge Add-ons installation and Edge-managed updates | Edge Extension |
| Firefox | Firefox-based browser workflows | Firefox Extension |
| Obsidian | Vault-native preview and export | Obsidian Plugin |
| VS Code | Editor-side preview, commands, and writing workflows | VS Code Extension |
| Mobile | Opening and sharing Markdown on iOS and Android | Mobile App |
See Platform Feature Comparison for a side-by-side view.
Core Workflows
AI Draft to Shareable Document
Save Markdown from an AI assistant, open it with docu.md, review the formatted result, choose a theme, and export a document that is easier to send to colleagues, clients, classmates, or reviewers.
Technical Notes to Documentation
Keep architecture notes, project READMEs, API drafts, and visual blocks in Markdown. Preview them with formatted code and rendered content before sharing.
Reports and Research Drafts
Use Markdown for writing speed, then export documents with tables, formulas, headings, and document themes preserved for review or submission.
Main Capabilities
- Clean Markdown reading view for local files and supported web URLs.
- Document export to DOCX, PDF, or self-contained HTML where supported.
- Editable formulas in Word output.
- Rendered diagrams and charts from source blocks.
- Syntax highlighting, GitHub-style tables, task lists, images, SVG content, and complex HTML tables.
- Support for common text-based diagram and chart formats including PlantUML, Mermaid, Vega/Vega-Lite, drawio, Canvas, Infographic, and Graphviz.
- Themes for business, academic, technical, reading, and Chinese typography needs.
- Smart rendering and caching for large documents.
- Local processing for normal preview and export workflows.
Privacy
docu.md is designed around local processing. Normal preview and export workflows do not require uploading your Markdown files to a remote rendering service.
Read the Privacy Policy for details.
Marketplace Copy
Marketplace descriptions are maintained separately from README files so store metadata does not accidentally inherit long feature lists or outdated copy. See Marketplace Copy Source for the source directory and rules.