Markdown to HTML Converter
Convert Markdown to clean HTML instantly. Live preview, copy raw HTML, or download a full HTML file. Free browser-based Markdown converter.
The Markdown to HTML Converter transforms Markdown text into clean, standards-compliant HTML instantly in your browser — no server, no API, no dependencies. It supports the full CommonMark-style Markdown spec including headings, bold, italic, strikethrough, inline code, fenced code blocks, blockquotes, ordered and unordered lists with nesting, tables, horizontal rules, links, and images.
Type or paste your Markdown into the left panel and the rendered HTML preview updates live in the right panel. Toggle to the HTML source view to inspect the raw generated markup. When you are happy with the output, copy the HTML snippet with one click or download a complete self-contained HTML file with a built-in stylesheet ready to open in any browser.
This tool is useful for a wide range of workflows: converting README files to HTML for documentation sites, transforming blog drafts written in Markdown into publishable HTML, generating email body content from Markdown, producing HTML snippets for CMS platforms that accept raw HTML input, and previewing how Markdown will render before committing it to a repository.
All user-provided text is HTML-escaped before insertion into the generated markup, preventing cross-site scripting. Links are validated to ensure only safe protocols (http, https, relative paths, and anchor fragments) are rendered as clickable anchors — any attempt to insert javascript: or data: URIs produces plain text instead. Image sources are similarly validated to allow only http, https, and data:image/ URIs.
The downloaded HTML file includes a clean inline stylesheet with sensible typography, table styling, code block formatting, and blockquote styling — suitable for sending as a standalone document or importing into a CMS.
Frequently Asked Questions
- What Markdown features are supported?
The converter supports headings (# through ######), bold (**text** or __text__), italic (*text* or _text_), bold+italic (***text***), strikethrough (~~text~~), inline code (`code`), fenced code blocks (``` with optional language label), indented code blocks (4 spaces), blockquotes (> with nesting), unordered lists (-, *, +), ordered lists (1., 2., etc.), nested lists, tables (| col | col | with separator row), horizontal rules (---, ***, ___), links ([text](url)), and images ().
- Is the generated HTML safe to use on a website?
Yes. All user-provided text is HTML-escaped before insertion to prevent cross-site scripting. Links are validated — only http:, https:, relative paths, and anchor fragments are rendered as anchors; javascript: and data: URIs fall back to plain text. Image sources are limited to http:, https:, and data:image/ URIs. The generated HTML is safe to embed in a page, though you should always review any code you use in production.
- What does the downloaded HTML file include?
The downloaded document.html file is a complete standalone HTML page with a DOCTYPE declaration, charset meta tag, viewport meta tag, and an inline stylesheet with sensible defaults for body typography, headings, code blocks, blockquotes, tables, horizontal rules, and images. It can be opened directly in any browser or imported into a CMS.
- Does the tool support GitHub Flavored Markdown (GFM)?
The tool supports the most commonly used GFM features including fenced code blocks with language labels, tables, and strikethrough. It does not support task list checkboxes (- [ ] / - [x]), footnotes, or autolinked URLs without brackets — these are edge-case GFM extensions. Standard CommonMark Markdown is fully supported.
- Is my text sent to a server?
No. All Markdown parsing and HTML generation happens entirely in your browser using a built-in parser with no external dependencies. Your text is never transmitted to any server, stored, or shared.