Markdown Live Preview
Write Markdown and see the rendered HTML update live, then export or print to PDF.
Tool code processes selected files and entered content in your browser and does not submit them to a TOOLGRID processing endpoint. TOOLGRID measures tool usage, not the content you enter.
- No TOOLGRID input upload
- No account
- Review before copy
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What this tool does
Render Markdown into sanitized HTML while you type, inspect the generated source, and track word, character, and estimated reading-time totals. Download a self-contained HTML document shell or open the browser print dialog to save the current preview as PDF.
Markdown Live Preview converts headings, lists, tables, task lists, code fences, links, and other supported Markdown into a side-by-side browser preview.
The generated markup is sanitized with DOMPurify before it enters the preview or export, and the HTML source remains visible so you can review what will be copied or downloaded.
Sanitization removes dangerous markup but does not make every destination URL trustworthy; remote images can still make browser requests and downloaded HTML should be reviewed before publishing.
Where this tool earns its place
Check heading structure, code fences, tables, links, and task lists before committing Markdown to a repository.
Draft a scannable change summary, monitor its approximate reading time, and export a review copy for non-Markdown stakeholders.
Compare source Markdown with sanitized HTML before pasting it into a CMS, email tool, or documentation pipeline.
What to check before relying on the result
- Performance and maximum practical input size depend on browser memory, device speed, and the structure of the input.
- Review the generated result before replacing or publishing an original file.
Open a nearby browser tool when you need to validate, convert, or reuse the result.
How to use
01Use Cases
Check heading structure, code fences, tables, links, and task lists before committing Markdown to a repository.
Draft a scannable change summary, monitor its approximate reading time, and export a review copy for non-Markdown stakeholders.
Compare source Markdown with sanitized HTML before pasting it into a CMS, email tool, or documentation pipeline.
Tips & Tricks
- 01Review remote media
A Markdown image that points to another host can trigger a browser request when rendered. Remove tracking URLs or use trusted local assets when privacy matters.
- 02Treat reading time as an estimate
The displayed value assumes roughly 200 whitespace-separated words per minute and does not account for code, diagrams, or audience familiarity.
- 03Open the exported file before publishing
The HTML export includes the sanitized body and a basic stylesheet. Check links, layout, fonts, and destination-specific CSS before distribution.
FAQ
02Is the HTML safe?
Rendered HTML is sanitized with DOMPurify before insertion, so scripts and other dangerous tags are stripped.
Does the PDF export run on a server?
No. We open a print preview in a new tab; your browser produces the PDF locally.
What Markdown features are supported?
Standard CommonMark plus GFM tables, task lists, fenced code, and autolinks via the marked parser.
Does sanitization validate links and remote images?
No. It removes unsafe HTML constructs, but you must still review destination URLs. A permitted remote image URL may be requested by the browser when the preview renders.
What is included in the downloaded HTML?
The download contains a complete HTML document with the sanitized rendered body and a small built-in stylesheet. It does not bundle remote images, fonts, or linked assets.