Markdown Viewer — Online .md Preview
A Markdown viewer turns plain Markdown — the lightweight syntax used by README files, documentation, GitHub issues and note-taking apps — into clean, formatted output you can actually read. MyJson’s viewer renders GitHub-Flavored Markdown instantly in your browser, so headings, lists, tables, task lists and code blocks all appear exactly as they would on GitHub.
Upload a .md file or paste Markdown directly and choose how you want to see it: source and preview side by side, raw source only, or the rendered preview on its own. Because everything runs locally, private notes and unreleased docs never leave your machine.
How to use the markdown viewer
- 1Add your MarkdownUpload a .md file or paste Markdown straight into the source panel. The content renders immediately.
- 2Pick a view modeUse Split to see source and preview together, Source to read the raw Markdown, or Preview for a clean rendered page.
- 3Resize and scrollDrag the divider in Split view to balance the panes, and keep synchronized scrolling on so both sides stay aligned.
- 4Copy or downloadCopy the Markdown to your clipboard or download it as a .md file. Use full screen for distraction-free reading.
Features
- GitHub-Flavored Markdown (GFM) rendering
- Split, source-only and preview-only view modes
- Syntax-highlighted fenced code blocks
- Tables, task lists, blockquotes and nested lists
- Resizable divider with synchronized scrolling
- Upload .md files or paste Markdown directly
When to use it
- Previewing a README before pushing it to GitHub
- Reading documentation or release notes offline
- Checking how Markdown notes will render
- Reviewing a .md file someone shared with you
Frequently asked questions
How do I preview a Markdown file online?
Upload your .md file or paste the Markdown into the source panel. MyJson instantly renders it using GitHub-Flavored Markdown, with a live preview next to the source. No signup or upload to a server is required.
Does it support GitHub-Flavored Markdown?
Yes. Tables, task lists, strikethrough, autolinks, fenced code blocks with syntax highlighting and the rest of GFM are all supported, so your Markdown looks just like it does on GitHub.
Is my Markdown content private?
Yes. The viewer renders everything locally in your browser using JavaScript. Your files and text are never uploaded, so private documentation stays on your device.
Can I edit the Markdown here?
The source panel is editable, so you can tweak the text and watch the preview update live. It is designed primarily as a viewer rather than a full editor, but quick edits work well.
Related tools
Looking to learn more? Browse our JSON guides and tutorials.