Markdown Viewer by Burlac MIhail

Markdown Viewer turns any .md / .markdown file into a beautifully styled page - locally, in your browser, with zero data collection.

Features
- 5 themes: Auto, GitHub Light, GitHub Dark, Sepia, Dracula
- Syntax highlighting for ~35 languages via highlight.js
- Table of contents sidebar with scroll tracking
- Mermaid diagrams (flowchart, sequence, class, state, ER, gantt, pie, journey, git graph, mindmap, quadrant)
- KaTeX math rendering (inline $…$ and display $$…$$)
- Copy-code button on every code block
- Auto-reload when the source .md file changes
- Adjustable reading width and font size
- Toggle rendered / raw with one click

Privacy
All rendering happens locally. No data is sent anywhere. No analytics, no trackers.

File access on Firefox
To render local .md files (file://), open about:addons → Markdown Viewer → Permissions → enable "Access your data for file URLs".

Built by Empirica Apps - https://empiricapps.com