Markdown Converter
Write Markdown with a live GFM preview, then copy HTML or download as HTML or PDF — all in your browser.
Markdown
Preview
Markdown Converter
Write Markdown on the left and see a live preview on the right.
Features
- GitHub Flavored Markdown (tables, strikethrough, task lists)
- Copy rendered HTML
- Download
.htmlor PDF
Sample table
| Tool | Category |
|---|---|
| JSON Formatter | Developer |
| Word Counter | Text |
Tip: Everything runs in your browser — nothing is uploaded.
console.log('Hello from ToolSink');
- Live preview
- Ship to production
About Markdown Converter
The Markdown Converter is a split-pane editor: write or paste Markdown on the left and see a live HTML preview on the right. When the draft looks right, you can copy the rendered HTML fragment, download a self-contained markdown.html document (with basic typography CSS), or export a PDF via html-to-pdfmake and pdfmake — all without leaving the browser.
Markdown is the default format for README files, technical blogs, RFCs and many CMS drafts. A live preview catches broken headings, nested lists, GFM tables and strikethrough before you commit or publish, which is faster than pushing to a remote host just to check rendering. The editor ships with a sample document so you can try tables, task lists, blockquotes and fenced code blocks immediately.
Conversion uses ReactMarkdown with remark-gfm, so GitHub-flavoured extras (tables, strikethrough, task checkboxes) render in the preview. Your draft never leaves the device: there is no account, no cloud sync and no upload of unpublished notes. PDF export serialises the preview HTML through pdfmake with 11pt default type and 40pt page margins.
How Markdown Converter works in practice
- 1Type or paste Markdown in the left editor (or start from the built-in sample).
- 2Watch the right-hand preview update for headings, lists, tables, code and task lists.
- 3Use Copy HTML when you need the fragment for a CMS or email template.
- 4Use Download .html for a full HTML document with embedded basic styles.
- 5Use Download PDF when stakeholders prefer a printable attachment over source Markdown.
- 6Fix formatting in Markdown and re-export — the same draft drives every output.
Jobs this tool is built for
- Turn a README or ADR draft into a printable PDF for stakeholders who do not use GitHub.
- Convert meeting notes written in Markdown into HTML for a wiki or Confluence-style paste.
- Preview GFM tables and task lists before committing documentation to a repo.
- Export a blog or changelog draft to PDF for offline review on a tablet or printed packet.
What you can do here
- Split Markdown editor and live HTML preview
- GitHub-flavoured Markdown via remark-gfm (tables, strikethrough, task lists)
- Copy rendered HTML fragment to the clipboard
- Download self-contained markdown.html with basic CSS
- PDF export through html-to-pdfmake + pdfmake
- Copy raw Markdown as well as HTML
- Fully local processing — draft stays on your device
Limits and honest caveats
- Complex custom HTML embedded in Markdown may not survive PDF conversion perfectly; prefer standard Markdown constructs for PDF.
- External images need reachable URLs (or already-loaded preview assets) to appear in preview and PDF.
- The downloaded HTML wraps the preview body in a minimal document shell — it is not a full theme of your production site.
- Very large drafts can make PDF generation slower while pdfmake builds the document in-memory.
Common questions about Markdown Converter
Which Markdown dialect is supported?
CommonMark basics plus GitHub-flavoured additions through remark-gfm: tables, strikethrough, autolinks and task-list checkboxes as shown in the sample document.
Is my Markdown uploaded?
No. Preview rendering and HTML/PDF export all run in your browser. Closing the tab discards unsaved editor state.
Can I edit the HTML before copying?
Copy the generated HTML into your own editor if you need hand tweaks. This tool focuses on Markdown → preview → export rather than a full HTML IDE.
Why does my PDF miss an image?
The image URL must be publicly reachable or already loaded in the preview when export runs. Broken or relative paths that do not resolve in the page will not appear in the PDF.
What is the difference between Copy HTML and Download .html?
Copy HTML puts the preview’s inner markup on the clipboard for pasting into another system. Download .html wraps that markup in a full HTML5 document with charset, viewport and simple body/table/code styles.
This page was written by the ToolSink team to explain how Markdown Converter works on this site — it is not syndicated, scraped, or spun from another publisher. How we write tool guides · Site updates · About ToolSink.
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