# apphelp tool profile
name: Markdown ↔ HTML Converter
tool: tool-markdownhtml
domain: markdownhtml.apphelp.net
canonical: https://markdownhtml.apphelp.net/en
summary: Convert Markdown to HTML and HTML to Markdown locally in the browser with an optional rendered preview.
inputs: A Markdown document or an HTML fragment pasted as text.
outputs: Rendered HTML source or Markdown, with an optional in-browser preview.
use-cases: turn Markdown notes into HTML for publishing; convert HTML emails or pages back to Markdown; preview Markdown rendering quickly; clean up pasted HTML into portable Markdown
keywords: markdown to html, html to markdown, markdown converter, markdown preview, html to md
languages: en, zh-CN, zh-TW, ar, de, fr
seo: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD
geo: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes
privacy: browser-local processing, no upload by default
analytics: Microsoft Clarity and Google Analytics (opt-in)
no-login: true