I'm guessing it doesn't handle images because you'd have to upload the image, right? I tried one in this format:

with no luck. (Update: it works with URL links)
It doesn’t support local images yet since it currently only renders uploaded Markdown, but I’m looking into ways to make it work. thanks for the feedback!
In https://mdview.io/ I implemented sharing via url encoding so no server is needed, thou big files are not supported because of the url length limitation
To prevent abuse, I'm using Cloudflare Turnstile to challenge bot access. Since the server validates the token from the browser, curl doesn't work—you'll have to use the web UI to upload. It's the simplest way I could keep the spam away for now.
Separately, be cautious of people putting illegal content on your platform.
https://casual-effects.com/markdeep/
First thing that came to my mind: how do I "curl" a md to it?
But then, I don't know how you intend to manage spam/abuse
default: https://mdto.page/1E/ILeVn resume: https://mdto.page/1E/Cxhnf