# Markdown Editor & Live Viewer

> Write markdown with a live preview, outline, formatting toolbar and one-click HTML, PDF or .md export.

This markdown editor renders your document as you type, with a formatting toolbar, a clickable outline, live word count and reading time, and export to .md, standalone HTML or PDF. It supports GitHub Flavored Markdown — tables, task lists, strikethrough and fenced code — and runs entirely in your browser, so nothing you write is uploaded.

**URL:** https://convertto.tech/t/markdown-editor
**Category:** Text Tools (https://convertto.tech/c/text-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-18

## Key facts

- **Flavour:** GitHub Flavored Markdown — tables, task lists, strikethrough, autolinks, fenced code
- **Export:** Markdown, standalone HTML with styles inlined, and print to PDF
- **Shortcuts:** Ctrl/⌘ + B bold, I italic, K link, F find, Enter runs
- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Type or paste your markdown into the editor, or open an existing .md file.
2. The preview renders as you type, with the outline and word count updating alongside it.
3. Use the toolbar — or Ctrl/⌘ + B, I and K — to format the selection without retyping it.
4. Copy the markdown or HTML, download a .md or a standalone .html file, or print to PDF.

## FAQ

### Is my document uploaded anywhere?

No. The markdown is parsed and rendered by JavaScript in your browser, and the draft is kept in this device's local storage. Nothing is sent to a server, which is why it is safe for unpublished drafts and internal documentation.

### Which markdown flavour does the preview use?

GitHub Flavored Markdown. That adds tables, task lists, strikethrough, autolinks and fenced code blocks on top of the CommonMark base, so a README renders here the way it will render on GitHub.

### Can I tick the checkboxes in the preview?

Yes. Clicking a task-list checkbox in the preview rewrites the matching "- [ ]" in the source, so the document and the rendering never disagree.

### Can I export to PDF?

Yes — use Print in the preview toolbar and choose "Save as PDF" in your browser's print dialog. The printed stylesheet keeps code blocks, tables and quotes from splitting across pages.

### What happens to raw HTML inside my markdown?

Safe formatting tags are kept; scripts, iframes, styles, event handlers and javascript: URLs are stripped before the preview renders. That is necessary because a document can arrive from a shared link.

### Is my work saved if I close the tab?

Your most recent draft is restored automatically from local storage when you come back, and the Share button puts short documents in the URL itself so you can send one without an account.

## Sources

- [CommonMark Specification](https://spec.commonmark.org/) — CommonMark
- [GitHub Flavored Markdown Spec](https://github.github.com/gfm/) — GitHub

## Related tools

- [Sample Markdown Generator](https://convertto.tech/t/sample-markdown-generator): Generate Markdown documents exercising every feature — tables, code, footnotes, task lists and more.
- [Markdown to HTML Converter](https://convertto.tech/t/markdown-to-html): Convert Markdown to clean HTML, or turn existing HTML back into Markdown.
- [HTML to Markdown Converter](https://convertto.tech/t/html-to-markdown): Convert HTML into clean, readable Markdown.
- [CSV to Markdown Table](https://convertto.tech/t/table-to-markdown): Turn CSV, TSV or pasted spreadsheet data into a Markdown, HTML or reStructuredText table.
- [Checklist to Markdown](https://convertto.tech/t/checklist-to-markdown): Turn a plain list into Markdown task lists, HTML checkboxes or a numbered outline.
- [Markdown to DOCX Converter](https://convertto.tech/t/markdown-to-docx): Export Markdown as a DOCX with Word heading styles, lists and grid tables.
- [Markdown to JSON Converter](https://convertto.tech/t/markdown-to-json): Parse Markdown into a structured JSON document tree with headings, lists and tables.
- [Markdown to Presentation Slides](https://convertto.tech/t/markdown-to-slides): Turn a Markdown outline into a real PowerPoint deck — one slide per heading.
- [Readability Score Checker](https://convertto.tech/t/readability-scorer): Score text with Flesch, Gunning Fog, SMOG, Coleman-Liau and ARI, and see the reading age.