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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.
- Review opens a read-only preview where you can comment on or suggest changes to headings, paragraphs, code blocks, and diagrams.
- Import, Export, Copy, Share, and Theme toggle actions are always available in the header toolbar.
Toolbar descriptions
- Undo and Redo keep editing history close at hand.
- Use the Text and Case menus for paragraph styles, H1–H6 headings, and capitalization.
- Quick formatting covers emphasis, quotes, alignment, and lists; Insert holds the longer list of content tools.
- Use Find, Fullscreen, and Help 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 browser-based Markdown editor and viewer with GFM live preview, diagrams, maps, STL previews, ABC notation, sharing, export tools, and a lightweight Neutralinojs desktop build.
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.
Storage privacy
By default, document tabs are saved on this device for convenience. Private mode stops saving document content until it is turned off.
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 Snapshot
Small documents stay encoded in the URL. Large documents use temporary Cloudflare KV for up to 90 days. Shared tabs are not saved locally on the recipient's device.
Access
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Live Share
Session ActiveTemporary in-memory room. No permanent document storage is created.
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