Blume

What is Blume?

Blume is an open-source documentation platform that turns plain Markdown into a production-grade docs site. It's built for teams that want to ship beautiful, fast, and AI-ready documentation without writing or maintaining app boilerplate. Drop a folder of Markdown files into Blume, and it handles the rest — search, theming, SEO, and one-command deploys on Astro and Vite. Free and open source, forever.

Who it's for

• Developer experience leads — who need to ship and maintain docs across multiple products without a dedicated docs engineering team.
• API and SDK teams — that want interactive references and changelogs generated directly from OpenAPI specs and GitHub Releases.
• Open-source maintainers — who want a zero-config, free docs site that stays in sync with their repo and deploys in a single command.

Key features

Zero-config setup

A folder of Markdown is a complete project — there's no starter to clone and no template to keep in sync with upstream. Navigation is inferred from your files, and search, theming, and OG images are on by default. You only reach for configuration when you actually need it.

Interactive API references

Drop in an OpenAPI or AsyncAPI spec and Blume renders a full interactive reference — endpoints, schemas, and a live "Try it" playground. It's powered by Scalar and themed to match your site, so your API docs feel like part of the product, not an afterthought.

Built-in changelog

Write each release as a Markdown entry — or point Blume at your GitHub Releases — and every one rolls up into a generated timeline at /changelog. You get permalinks, newest-first ordering, and an RSS feed on by default, so users can subscribe to your updates.

AI-ready and i18n out of the box

Blume ships with full-text search, dark mode, and support for 36 locales (i18n) — all without a plugin to install or a service to wire up. The AI-ready foundation means your docs are structured in a way that's easy for language models to consume, which is increasingly important as AI assistants become a primary docs interface.

What stands out

"A folder of Markdown is a complete project — no starter to clone, no template to keep in sync."

That's the core promise, and Blume delivers on it. Most docs tools require you to adopt a framework, learn a theming system, or wire up a dozen integrations before you see a result. Blume inverts that: the default experience is production-grade, and configuration is the exception, not the rule. Combined with the interactive API references and GitHub Releases integration, it covers the full lifecycle of API documentation — from quickstart to changelog — in one tool.

Worth checking out if…

You're tired of maintaining a docs site as a side project, or you're about to launch a new API and want docs that look polished from day one. If you already write Markdown and want search, SEO, i18n, and AI-readiness without the boilerplate, Blume is worth a look. It's especially strong for teams shipping multiple products or open-source projects that need docs to stay in sync with code.