Markdown Converter
Markdown Converter
Markdown Converter: Supports bidirectional conversion between Markdown and HTML with real-time preview rendering. Supports GFM extended syntax, code highlighting, KaTeX math formulas, and Mermaid diagrams, suitable for document writing, blog publishing, and email rich text generation
Input
Output
Converted result will appear here…
Quick Start
Common Scenarios
Blog/Docs preview
quickly check Markdown rendering and colors
Email delivery
paste exported HTML into the email body (prefer inline styles)
Rich text → Markdown
clean webpage/CMS rich text into version‑controlled Markdown
Tech docs
render formulas/diagrams and export in one step
Editor migration
reconcile differences across Markdown flavors
Wiki/Knowledge base
convert HTML pages to Markdown for import
API changelog
turn HTML/descriptions into Markdown for review/PR
Extended workflow
convert markdown to html, markdown html converter, and markdown editor can be handled in the same review flow, so you can verify results before copying or exporting.
Conversion Parameters & Rendering
Usage Advice
Limitations & Compatibility
Session Controls
FAQ
Identify the target flavor (CommonMark/GFM/custom). Avoid raw HTML and private extensions. Use standard line breaks (blank lines or two trailing spaces). Reduce to a minimal example, verify on the target platform, then expand.
This tool doesn’t execute <script>, but it also doesn’t auto‑sanitize. Sanitize on the server/publish pipeline with a whitelist library (e.g., DOMPurify), disallow on* handlers and dangerous URI schemes, and enforce CSP for external/inline scripts.
Prefer portable semantics: convert nested tables/lists into pipe tables and flatter lists; paste as plain text to strip span/style/class before converting; isolate a minimal case and adjust the source.
Syntax: KaTeX $$…$$ or inline $…$; Mermaid fenced as ```mermaid. Large inputs may degrade (show source/disable highlighting). Reduce density, convert in parts, and use minimal examples to pinpoint syntax issues. Recovery: KaTeX can be recovered from rendered HTML; Mermaid recovery only works for diagrams generated by this tool with embedded source.