Best Documentation Platform for an Open-Source Project (2026)

Q: How do I make my open-source docs available to AI coding agents?

Serve llms.txt and Markdown pages, and add your repository to Context7 so agents that use its MCP server get your current docs. Docs7 does both from one build and refreshes your Context7 library on every production deploy. On other platforms, add the public repository to Context7 directly.

Abdullah Enes GulesOctober 20, 20267 min read

The best docs platform for an open-source project is usually a free static site generator on GitHub Pages: Docusaurus if you need versioned docs and translations, Starlight if you want a fast site with search included, and Sphinx or MkDocs on Read the Docs for Python projects. If nobody on the project wants to maintain a build, Docs7 Free hosts up to three public GitHub repositories on your custom domain for $0, and GitBook's sponsored plan suits projects where non-developers write the docs.

Whatever you pick, open-source docs have three jobs: cost nothing, accept fixes as pull requests, and reach the coding agents your users ask before they read the docs.

We build Docs7 and Context7, so weigh that. Where another tool is the better fit, we say so.

Open-Source Docs Platforms Compared

Platform	Cost	Hosting	Versioned docs	Search	`llms.txt`
Docusaurus	Free (MIT)	You host, often on Pages	Built in	Algolia DocSearch or a plugin	Community plugin
Starlight	Free (MIT)	You host, often on Pages	Community plugin	Built in (Pagefind)	Community plugin
VitePress	Free (MIT)	You host, often on Pages	Not built in	Built in, local	Community plugin
Read the Docs	Free for open source, with ads	Hosted	Built in, from Git tags	Built in	Serves one your build makes
Docs7 Free	Free, footer attribution	Hosted, up to three repos	`versions` in `docs.json`	Built in	Built in
GitBook (sponsored)	Free for approved projects, with an ad	Hosted	Built in	Built in	Built in

Docusaurus

Best for: Large projects with versioned docs and translations

Docusaurus is Meta's MIT-licensed React generator, and it is what many large open-source projects use. Versioning and i18n are built in, so you can keep docs for each major release and in several languages. You deploy the static output yourself, usually to GitHub Pages. Search comes from Algolia DocSearch, which is free for open-source docs but needs an application, or from a local search plugin.

Starlight

Best for: A fast docs site with search and no setup

Starlight is an MIT-licensed docs theme built on Astro. Full-text search works with no configuration, i18n is built in, and pages ship little JavaScript, so the site is fast. Versioning needs a community plugin. Pick Starlight for a new project that does not need versions per release.

Read the Docs

Best for: Python projects and Sphinx or MkDocs sites

Read the Docs builds and hosts docs from your repository, free for open-source projects, with a small ad on each page. It builds a version of the docs for each Git tag or branch you choose, and pull request previews are built in. It is the standard home for Sphinx, which can generate an API reference from Python docstrings.

If you use MkDocs, note that the Material for MkDocs team put the theme into maintenance mode in November 2025. An existing site keeps working. For a new one, pick a tool under active development.

VitePress

Best for: Vue projects

VitePress is the Vue team's generator, built on Vite. It is fast, includes local search, and is what most of the Vue ecosystem uses for its own docs. Custom components are Vue, not React.

Docs7 Free

Best for: Projects that want hosting without maintaining a build

Website: context7.com/docs7 · Price: Free for up to three sites from public GitHub repos; Pro $200 a month with three sites included

Docs7 builds Mintlify-format projects (docs.json with MDX pages) from a public GitHub repository and hosts them for $0: up to three sites, each on your custom domain, with pull request previews, search, an API playground, and a Docs7 attribution in the footer. The site serves llms.txt and Markdown pages, and each production deploy can refresh the project's library on Context7, so the coding agents your users work with read your current docs. Analytics show which AI providers read which pages.

Versions are folders that you list under versions in docs.json, not builds from Git tags, so each version's pages stay in the default branch. Docs7 connects to GitHub only. A repository in another format can still connect without hosting, to use the docs agents.

Host your docs on Docs7 →

GitBook

Best for: Projects where non-developers write the docs

GitBook is a web editor with Git Sync to GitHub or GitLab. Its Free plan has no custom domain, but its sponsored site plan for approved open-source projects includes one and shows a small ad on each page.

Which One Should You Pick?

Your project	Pick
Several supported major versions, or translations	Docusaurus
A new project that wants a fast site now	Starlight
A Python library with an API reference	Sphinx on Read the Docs
A Vue project	VitePress
Nobody wants to maintain the docs build	Docs7 Free
Non-developers write most of the docs	GitBook's open-source plan

Make Your Docs Reach Coding Agents

Many of your users now ask Claude Code, Cursor, or Codex how to use your library. The agent answers from training data unless something gives it your current docs, and for a fast-moving project that data is often a version or two behind.

Three things help, whichever platform you pick:

Serve llms.txt and Markdown versions of your pages, with your platform's feature or a plugin.
Add the repository to Context7 at context7.com/add-library. Agents that use the Context7 MCP server then get current, version-specific docs and examples for your library. It is free for public projects.
Write pages that stand on their own. An agent often reads one page, not the whole site, so each page needs its own context and a complete code example.

On Docs7, the first two are built in: tick Add to Context7 when you connect the repository.

Host docs from GitHub on a custom domain: Free ways to publish docs from a GitHub repo on your own domain, with the DNS steps.
Best Docusaurus alternatives: Starlight, Fumadocs, Nextra, and VitePress, plus hosted options that run the build.

Frequently asked questions

What's the best docs platform for an open source project?

For most projects, a free static site generator on GitHub Pages: Docusaurus if you need versioned docs or translations, Starlight for a fast site with built-in search, and Sphinx on Read the Docs for Python libraries. If you do not want to maintain a build, Docs7 Free hosts up to three public GitHub repositories on your custom domain for $0.

Is there free docs hosting for open-source projects?

Yes. GitHub Pages is free for public repositories. Read the Docs is free for open-source projects and shows a small ad. Docs7 Free hosts up to three sites from public GitHub repositories with a footer attribution. GitBook has a free sponsored plan for approved open-source projects, with an ad on each page.

Docusaurus or Starlight for an open-source project?

Docusaurus if you need versioned docs per release or translations, because both are built in. Starlight if you want a fast site with search that works without setup and you do not need versions. Both are MIT licensed and deploy to GitHub Pages.

Should open-source docs support versions?

If users run more than one major version, yes. Keep docs for each supported major version, so users of an older release do not follow instructions for a newer one. Docusaurus and Read the Docs have versioning built in, and Docs7 reads the versions list in docs.json. Tell coding agents too: Context7 indexes versions from Git tags, so an agent can read the docs for the version a user installed.

How do I make my open-source docs available to AI coding agents?

Serve llms.txt and Markdown pages, and add your repository to Context7 so agents that use its MCP server get your current docs. Docs7 does both from one build and refreshes your Context7 library on every production deploy. On other platforms, add the public repository to Context7 directly.

Free Docs Hosting for Your Open-Source Project

Connect a public GitHub repository with a docs.json, and Docs7 Free builds it on every push, serves it on your domain, and keeps it current in Context7 for the coding agents your users work with.