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Markdown Viewer Help
Application shortcuts
- Use the view buttons in the toolbar to switch between Editor, Split, and Preview modes.
- Sync scrolling is available in Split view to keep the editor and preview aligned.
- Import, Export, Copy, Share, and Theme toggle actions are always available in the header toolbar.
Toolbar descriptions
- Undo/Redo and Clear Formatting help you manage editing changes quickly.
- Text styling tools cover bold, italic, strikethrough, quotes, headings, and list formatting.
- Insert helpers add links, images, code blocks, tables, emojis, symbols, and alerts.
- Use Fullscreen, Find & Replace, Help, and About Markdown for focused editing.
Markdown tips
- Create headings with
#,##, and###prefixes. - Emphasize text with
**bold**,*italic*, or~~strikethrough~~. - Use
-or1.to build lists, and triple backticks for code blocks.
Keyboard shortcuts
- Ctrl/⌘ + Z — Undo
- Ctrl/⌘ + Shift + Z — Redo
- Ctrl/⌘ + F — Open Find & Replace
- Ctrl/⌘ + C/V — Copy/Paste
About Markdown
Markdown Viewer
A GitHub-style Markdown editor with live preview, diagrams, math, syntax highlighting, and export tools.
Version • Apache License 2.0 • Open source
Open-source links
For feature requests, open a GitHub issue or start a discussion so the community can weigh in.
Markdown resources
Technology stack
- HTML, CSS, and JavaScript with Bootstrap 5 for layout and styling.
- Marked, DOMPurify, Highlight.js, Mermaid, MathJax, and Emoji Toolkit for rendering.
Open-source credits
Markdown Viewer is built on top of open-source libraries maintained by the community. Thank you to every contributor and maintainer.
Share Document
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The entire document is encoded in the URL. No data is sent to any server.
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Markdown alerts
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.md or .markdown files supported