retype

Retype does that. Point it at a folder of .md files and it generates a searchable, themed site with navigation, syntax highlighting, and a table of contents. Basically, it's "Markdown in, website out."

The free tier lets you build a site with up to 100 pages. That covers most small projects. Beyond that, Pro is $149/project or Business is $249/project (one-time, not subscription). The source code is visible on GitHub but the license is proprietary, not open source despite being on GitHub.

There's no cloud hosting from Retype: it generates static files you deploy anywhere: GitHub Pages, Netlify, Vercel, your own server. The build step runs locally or in CI. Solo developers: the free tier works for personal projects and small docs sites. Small teams: 100 pages is tighter than you think; once you add API references and guides, you hit it. The $149 one-time cost is reasonable. Growing teams: Business tier adds custom domains for docs, priority support.

The catch: it's not open source. The source is on GitHub for transparency, but the license restricts modification and redistribution. If that matters to you philosophically, Docusaurus or VitePress are fully open source alternatives that do the same thing with more setup.