DevToolsHub

Markdown to HTML Preview

Write Markdown with a live preview and HTML export that respects GitHub-Flavored Markdown tables, tasks, and strikethrough.

Copy HTML when you need to paste into a CMS, or share a URL so reviewers see the same draft.

Hello World

Bold and italic text.

  • List item 1
  • List item 2

Link

console.log('code block');

How to use

  1. Paste or type Markdown in the left panel (headings, **bold**, lists, links, code blocks).
  2. View the Rendered preview or switch to HTML to see the generated HTML.
  3. Use Share URL to get a link that restores your Markdown (handy for sharing).
  4. Use Copy HTML to copy the converted HTML to the clipboard.

1Markdown still powers developer documentation

README files, internal wikis, and changelog drafts are often written in Markdown because diffs stay readable and the syntax stays out of the way for prose.

GitHub-Flavored Markdown adds tables, task lists, and strikethrough—features that many teams rely on without thinking about the spec name.

  • Preview before you publish to catch accidental heading levels that change the table of contents structure.
  • Use a linter in CI for large docs, but keep a fast browser preview for everyday edits.

2From draft to HTML

Seeing the rendered HTML helps you verify that fenced code blocks pick up the right language hint for syntax highlighting on your target platform.

When you paste HTML produced elsewhere, compare it with your Markdown source to ensure you are not double-escaping or losing attributes your site depends on.

3Collaboration tips

Share a link with teammates when you want feedback on a proposal section without granting repo access to everyone involved.

Long documents benefit from a consistent heading style (single h1 at top, hierarchical h2/h3) so anchors and search indexing behave predictably.

4GFM vs strict Markdown

GitHub-Flavored Markdown adds tables, task lists, strikethrough, and autolinks. Strict parsers may not render those features. Match your preview to the platform where content will publish (GitHub, GitLab, static site generator).

Some platforms sanitize HTML on output; preview HTML locally does not guarantee the same tags survive on the host.

5Docs-as-code workflows

Teams store README and docs in git, review via pull request, and deploy with the product. Live preview accelerates writing without committing broken tables or heading hierarchy mistakes.

6Quick checklist for Markdown publishing

Preview with the same flavor your host supports (GFM vs strict). Check heading hierarchy—one top-level title per document when your platform auto-inserts an H1.

  • Verify fenced code language tags match your highlighter.
  • Copy HTML only after reviewing links and images for staging URLs.

Examples

README-style document

Preview headings, lists, and fenced code as they appear on GitHub.

# My Project
- Install: `npm install`
- Run: `npm test`

```js
console.log('ok');
```

GFM table

Tables need header separator rows.

| Tool | Use |
|------|-----|
| JSON | Config |

Frequently asked questions

Does preview support GitHub-Flavored Markdown?
Yes. Tables, task lists, strikethrough, and autolinks follow GFM conventions used on GitHub and many static site generators.
Can I copy the generated HTML?
Yes. Copy HTML for CMS paste or further processing. Sanitization on your target platform may strip some tags.
Why does my table not render?
GFM tables need header separator rows with dashes. Missing blank lines around tables can also confuse some parsers.
Is my Markdown sent to a server?
Preview runs in the browser. Share URL encodes content in the address bar—treat shared links like pasted text for sensitivity.
How do fenced code blocks work?
Use triple backticks with an optional language tag for syntax highlighting in supported renderers.

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