NextTool

Markdown Preview

How to use

A live Markdown editor with the rendered HTML shown side by side, so you can see exactly how your headings, lists, links and code blocks will look as you type. Write or paste Markdown on one side and watch the formatted preview update instantly on the other.

Developer PopularLocal only

Live Markdown editor and preview: GitHub-flavoured tables, task lists and code blocks.

151 words837 characters3 headings1 min read
Markdown
31 lines
Preview

Release notes

Write Markdown on the left, see the rendered structure on the right: headings, lists, tables and code all styled exactly as they will read.

What changed

Tool Status Notes
Diff Checker Shipped Side-by-side with inline word highlights
JSON Formatter Shipped Tree view + full screen
Markdown Preview In review GFM tables and task lists

Checklist

  • Tables render with borders
  • Task lists keep their checkboxes
  • Mermaid diagrams
  1. Paste or type Markdown
  2. Watch the preview update live
  3. Copy the Markdown or the generated HTML

Everything runs on your device: nothing is uploaded.

const render = (md: string) => marked.parse(md, { gfm: true });

Inline code, a link and struck text all work.

When to use this
  • Writing a GitHub README and checking how headings, tables and code blocks will actually render
  • Drafting a blog post in Markdown while previewing the formatted result as you go
  • Checking that a task list or table renders correctly before pushing documentation
  • Reviewing how fenced code blocks with syntax highlighting will look before publishing

Free and private. Everything runs on your own device, with no account and no uploads.

Writing documentation, a GitHub README, or a blog post in Markdown is much easier when you can see the rendered result as you type instead of guessing how headings and code blocks will look. This live Markdown editor shows your rendered HTML side by side with the source, updating as you write headings, lists, links, tables and code blocks.

Yes, common GitHub-flavored Markdown elements such as tables, task list checkboxes, and fenced code blocks with syntax highlighting are generally supported.

Yes, you can copy the rendered HTML output to embed elsewhere, separate from the raw Markdown source.

Basic inline HTML is typically rendered as part of the preview, consistent with how most Markdown parsers treat embedded HTML tags.

No, the editor works entirely in memory in your browser session, so unsaved content is lost if you close or refresh the tab without copying it out.

How it works
  1. 1

    Type or paste Markdown

    Write your content in the editor panel using standard Markdown syntax.

  2. 2

    Watch the live preview

    The rendered HTML updates automatically on the other side as you type.

  3. 3

    Adjust formatting as needed

    Tweak headings, lists, links or code blocks and see the effect immediately.

  4. 4

    Copy the Markdown or rendered HTML

    Copy either the source Markdown or the generated HTML for your project.

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Read about this
Writing in Markdown and generating the Word file later4 min
Pro tips
  • ·The editor holds content only in memory for the session, copy your Markdown out before closing or refreshing the tab.
  • ·Check embedded raw HTML in the preview if your Markdown mixes in inline tags, since rendering follows standard Markdown-parser behavior.
  • ·Copy the rendered HTML directly if you need to paste formatted content into a tool that does not support Markdown.