Markdown ⇄ HTML Converter
Convert Markdown to HTML or HTML to Markdown in either direction, in your browser.
How this tool works
Pick a direction
Markdown → HTML or HTML → Markdown, switchable with one click.
Paste your content
A README snippet, a wiki page, or an HTML block.
Common syntax converts
Headers, bold, italic, links, lists, and code blocks are handled directly.
Copy or swap
Grab the converted text, or swap it back in to check that a round trip stays readable.
Quick facts
- Category
- Converters
- Best for
- Converting a README snippet for an HTML email
About this tool
Switch between Markdown → HTML and HTML → Markdown with a single click. The converter covers the syntax people actually reach for day to day - headers, bold, italic, links, unordered and ordered lists, fenced and inline code - using a lightweight regex-based approach rather than pulling in a full CommonMark-compliant parsing library. That’s a deliberate trade-off: it keeps the tool small and fast, but it means edge cases from the full CommonMark specification - nested blockquotes, tables, footnotes, complex list nesting, or HTML mixed directly into Markdown - aren’t guaranteed to round-trip perfectly. For quickly converting a README snippet to paste into an HTML email, or pulling a block of HTML into Markdown for a wiki page, it covers the common cases well. Runs entirely client-side.
Why use this tool
Covers the syntax people actually use
Headers, bold, italic, links, lists, and code - the common cases, not an attempt at every edge case.
Both directions in one tool
No need to find separate Markdown-to-HTML and HTML-to-Markdown converters.
Lightweight, no dependency
Runs on a small regex-based converter instead of loading a large Markdown parsing library.
Honest about its limits
Clearly scoped to common syntax, not a full CommonMark implementation - no surprises on complex input.
Frequently asked questions
No - it covers the common syntax most people use day to day (headers, bold, italic, links, lists, code blocks and inline code) with a lightweight regex-based approach rather than a full spec-compliant parser. Less common CommonMark features like tables, footnotes, nested blockquotes, or deeply nested lists may not convert correctly, so for those cases a dedicated Markdown library is a better fit.
Not necessarily - the round trip isn’t guaranteed to be lossless for every possible input, since Markdown often has multiple valid ways to express the same structure (like using "*" versus "-" for a list) and the reverse conversion picks one consistent style rather than trying to preserve your original formatting choice.
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