turpan

Turpan is a markdown-to-HTML converter that takes simple text formatting (like you'd write in a README or blog post) and turns it into nicely styled web pages. Instead of building one tool from scratch, it wraps an existing markdown engine called markdown-it and plugs in a bunch of add-ons to handle special features.

Think of it like ordering a burger: the base markdown-it is your patty and bun, but Turpan comes with 17 toppings pre-installed. Those toppings let you do things like embed videos in your markdown, add footnotes, write math equations, create task lists with checkboxes, highlight text in different colors, and automatically generate tables of contents. Most of these features aren't built into plain markdown, so you'd normally have to install and wire them up yourself—Turpan does that work upfront.

The nice thing about Turpan is simplicity: you install it once with npm (JavaScript's package manager), then you can call one function—md.render()—and pass in your markdown text. Out comes clean HTML. That's it. You don't need to know what each of the 17 plugins does or how to configure them; they're all already working together. This makes it handy for anyone building a website, blog engine, documentation site, or note-taking app who wants rich markdown support without spending time assembling all the pieces themselves.

It's a small project (29 stars) made by Ruan Yifeng, a well-known tech writer. The tradeoff is that you get everything Ruan decided was useful, rather than picking and choosing exactly which features you want—but for most use cases, that's fine and saves setup time.