How to use this Markdown Viewer
- Paste or write Markdown. Add your document to the source editor, or use the Paste Markdown button.
- Check the live preview. The rendered view updates as you edit, so you can review structure and formatting immediately.
- Copy or export. Copy the original Markdown when you are finished, or choose Download PDF to create a shareable document.
What can you check in the Markdown preview?
Markdown editor with live preview
Use the split-pane Markdown editor to review headings, paragraphs, emphasis, blockquotes, lists, links, autolinks, strikethrough, and tables in their rendered form.
Code blocks
Inspect fenced code blocks with readable monospace formatting and syntax highlighting for recognized language labels.
Math and diagrams
Use the Mermaid Markdown preview and LaTeX Markdown preview to check supported diagrams and equations alongside the rest of the document.
Safe rendering
The preview uses a sanitized renderer that removes scripts, event handlers, unsafe URLs, and unsupported resource destinations.
Markdown syntax supported in the live preview
| Markdown source | Rendered result | Preview behavior |
|---|---|---|
# Heading | Headings from level 1 through 6 | Heading IDs are generated for document structure. |
**bold**, _italic_, ~~removed~~ | Emphasis and strikethrough | Inline formatting updates with the surrounding paragraph. |
- item, 1. item, > quote | Lists and blockquotes | Nested content remains grouped in the rendered document. |
- [x] complete | Task-list checkbox | Checked state mirrors the source and cannot be toggled in Preview. |
```js | Fenced code block | Recognized language labels receive syntax highlighting. |
| Pipe-table syntax | Scrollable HTML table | Wide tables stay inside the preview viewport. |
$E = mc^2$ or $$…$$ | Inline or display math | Supported LaTeX-style expressions render with the document. |
```mermaid or Mermaid source beginning with zenuml | Rendered diagram | Invalid diagrams fall back to readable source and an error note. Full TikZ source remains readable but is not rendered as a diagram. |
A quick Markdown preview example
# Release checklist
- [x] Review the README
- [ ] Publish version 2.0
| Item | Status |
| --- | --- |
| Docs | Ready |
```js
const version = '2.0';
```Check the heading, task-list state, table layout, and syntax-highlighted code block. The checkbox is read-only: edit [ ] to [x] in the source pane to change its state.View Markdown files and README files online
Use this Markdown reader and MD viewer to check a README, changelog, release note, API draft, study note, or technical document before sharing it. To view an existing .md file, open it on your device and paste its source into the editor.
When the source is a project README and you need a fixed file, use the README to PDF converter. For a general report or document, use the Markdown to PDF converter.
If your source is not Markdown yet, start with the file-to-Markdown conversion tools, then return here to review the result. For equations, diagrams, layout, and PDF export, read the Markdown-to-PDF guide.
What happens to your Markdown?
Live preview stays in the browser
Typing, pasting, parsing, sanitizing, and rendering the on-page preview run in your browser. The preview does not need a server request for ordinary Markdown text.
Unsafe HTML is removed
Scripts, inline event handlers, unsafe URLs, embedded documents, and unsupported resources are removed or replaced before rendered content reaches the preview.
Remote images are external requests
If the Markdown contains a public image URL, your browser may request that image from its host. Remove remote image references when reviewing sensitive material.
PDF export is a separate action
Your Markdown is sent to the PDF service only after you choose Download PDF. Review the Privacy Policy for processing and retention details.
Markdown Viewer vs. Markdown to PDF
| Your goal | Best next step |
|---|---|
| Check formatting while editing | Use the Markdown Viewer for a live side-by-side preview. |
| Share or print a fixed document | Use the Markdown to PDF converter. |
| Prepare a README for handoff | Use the README to PDF converter. |
| Convert another file into Markdown | Browse the file-to-Markdown tools. |
Frequently asked questions
What is a Markdown Viewer?
A Markdown Viewer renders Markdown source as a formatted document so you can read and check the result. This online Markdown Viewer shows the source and rendered preview together.
Can I preview Markdown online for free?
Yes. Paste Markdown into the editor to use the live preview in your browser. No account is required for the preview workflow.
Does the Markdown preview update as I type?
Yes. The preview is re-rendered shortly after you edit the source, so headings, lists, tables, code, math, and diagrams can be checked without a manual refresh.
Can I turn the Markdown preview into a PDF?
Yes. Choose Download PDF in the preview toolbar. PDF export sends the Markdown to SolConverter's PDF service to create the downloadable document. See the Privacy Policy for the data lifecycle.
Can I use an existing .md file with this viewer?
Yes. Open the file on your device, copy its Markdown source, and paste it into the editor. The current viewer is designed around typing and pasting source rather than uploading a file directly.
Can I use this as a README viewer?
Yes. Paste a README.md file into this online README viewer to review headings, tables, task lists, code blocks, math, and supported diagrams before sharing or exporting it.
Why can’t I click task-list checkboxes in the preview?
The rendered pane is a read-only representation of the Markdown source. To change a task, edit - [ ] or - [x] in the source pane; the preview then reflects that state.