HTML to Markdown Converter

Converting HTML to Markdown is particularly useful in the following situations:

• Writing technical documents: Convert existing web content to Markdown format for use with GitHub README, Wiki, or static site generators (Hugo, Jekyll, etc.).
• AI Prompt writing: AI models such as ChatGPT and Claude have the best understanding of Markdown. Converting web content to Markdown can obtain better AI response quality.
• Content migration: Convert the HTML content of your blog, CMS or newsletter to Markdown for migration to other platforms.
• Knowledge Management: Convert the content extracted from the web page into Markdown and store it in note-taking tools such as Obsidian, Notion, and Logseq.
• Remove redundant formatting: Content copied from Word and Google Docs contains a lot of junk styles, which can be automatically filtered when converted to Markdown.

Markdown is a "content first" format, and the following information will be automatically filtered during the conversion process:

• CSS style: All visual styles such as colors, fonts, margins, animations, etc. will not be preserved.
• JavaScript： Interactive behaviors, event handling, and dynamic effects cannot be converted.
• Complex layout: Layout structures such as multi-column layout, Flexbox, and Grid will be simplified to linear arrangement.
• Form elements: Form components such as input boxes, buttons, and drop-down menus cannot be converted.
• Embedded multimedia: Embedded content such as videos, audio, iframes, etc. will lose their interactivity.

This is actually an advantage rather than a disadvantage - Markdown forces you to focus on the semantic structure of the content rather than the cosmetic decoration.

"Clean Markdown" is our unique HTML preprocessing function that specifically solves the problem of Word、Google Docs、Evernote Or the problem of a lot of junk code entrained when AI tools (such as ChatGPT) copy HTML.

Clean Markdown will automatically:

• Remove all <span> and empty <div> wrap element
• Clear any blank or meaningless style、class、id Properties
• Remove Word-specific MSO namespace tags (<o:p>、<!--[if ...]-->）
• Remove <font> Label with empty nest container
• Clean up XML processing instructions and CDATA sections

When enabled, it results in Markdown output that's many times cleaner than direct conversion, and is one of our top-rated features.

This tool supports complete conversion of the following HTML tags:

Unsupported tags will be automatically ignored and will not affect the conversion results.

GFM (GitHub Flavored Markdown) It is a syntax specification extended by GitHub based on standard Markdown, and has become the de facto Markdown industry standard. GFM adds the following new features:

• Table: Use pipeline | Create structured tables
• Strikethrough: Use ~~文字~~ Indicates deletion
• Task List: Use - [x] and - [ ]
• Syntax highlighting of code blocks: Use ```語言 Specify programming language
• Autolink: URL automatically converted to clickable link
• Paragraph wrapping: Newline characters are treated as soft line breaks (needs to be enabled in options)

After enabling the GFM option, the converted Markdown will be maximally compatible with code management platforms such as GitHub and GitLab.

100% safe. This tool adopts a pure front-end (Client-side) architecture, and all HTML conversion processing is completed in your browser.No data will be uploaded to any server。

This means:

• Your trade secrets, API files, and private web content never leave your computer
• No internet connection is required to perform the conversion (except when loading the page for the first time)
• No backend servers store or process your content
• Even ToolHub administrators cannot access the data you enter

This is the biggest difference between us and other cloud transformation tools - security starts with architectural design.