Markdown to HTML Converter
Paste Markdown, get clean HTML — rendered preview and raw source, side by side.
This free online Markdown to HTML converter handles headings, lists, links, tables, and fenced code blocks. No signup, runs entirely in your browser.
GitHub-flavored Markdown
Tables, strikethrough, autolinks
Line breaks as <br>
Single newline becomes a break
Output view
What does a Markdown to HTML converter do?
A Markdown to HTML converter parses Markdown syntax and turns it into standard HTML markup — # Heading becomes <h1>Heading</h1>, **bold** becomes <strong>bold</strong>, and so on. It's the reverse of an HTML-to-Markdown converter, useful whenever you have Markdown source (a README, a CMS field, a static site generator's content) and need it rendered as HTML for a browser, email, or another system that expects markup.
GitHub-flavored Markdown support
Plain Markdown has no native table syntax — this converter adds the GitHub-flavored Markdown (GFM) extension for tables, so a pipe-delimited Markdown table renders as a proper HTML <table>. Strikethrough (~~text~~), automatic URL linking, and task-list checkboxes are supported the same way. Turn GFM off to see plain, strict Markdown behavior instead.
Why single line breaks are ignored by default
Standard Markdown treats a single line break inside a paragraph as whitespace — you need a full blank line to start a new paragraph. This trips people up when pasting from plain text, since every wrapped line looks like it should be a new line in the output. Enable Line breaks as <br> to make every single newline produce an HTML <br> tag instead — the same convention GitHub uses when rendering comments and issue descriptions.
Fenced code blocks and language tags
Wrapping code in triple backticks (```` ``` ````) produces an HTML <pre><code> block. Adding a language right after the opening fence — like ```js — attaches a language-js class to the output, which most syntax highlighters pick up automatically.
Frequently asked questions
How do I convert Markdown to HTML?
Paste your Markdown into the input — the rendered HTML preview and raw HTML source both update automatically. Toggle GitHub-flavored Markdown and single-line-break behavior from the options panel.
What is GitHub-flavored Markdown (GFM)?
GFM is an extended Markdown spec that adds pipe tables, strikethrough (~~text~~), automatic URL linking, and task list checkboxes on top of standard Markdown. It's on by default here since it's what most editors and platforms expect.
What does the "line breaks" option do?
By default, a single line break inside a paragraph is ignored — you need a blank line to start a new paragraph, per the standard Markdown spec. Turning this option on converts every single line break into an HTML <br> tag instead, matching how GitHub renders comments and READMEs.
Is my content sent to a server?
No. The conversion runs locally in your browser using the marked JavaScript library — nothing you paste is ever sent anywhere.
Related tools: HTML to Markdown · HTML Formatter · Diff Checker
