Build a Markdown-to-HTML Converter (JS)

Write your own little Markdown-to-HTML converter in JavaScript - blocks, inline formatting, and escaping - built and run right in the browser.

1. The Plan: Lines to HTML Map Markdown onto HTML, split the input into lines, and set up the loop your whole converter will live inside.
2. Block Elements Turn whole lines into headings, paragraphs, and lists using regular expressions that capture the text and wrap it in tags.
3. Inline Formatting Format the text inside blocks - bold, italic, inline code, and links - with a chain of regex replacements applied in the right order.
4. Putting It Together Wire the block and inline passes into one converter, escape raw HTML so it can't break your page, and handle the rough edges.