Top 8 Self-Hosted Documentation Tools in 2026

TL;DR

• Our picks are Docmost, Wiki.js, BookStack, Outline, XWiki, Docusaurus, MediaWiki, and DokuWiki.
• Docmost, Wiki.js, BookStack, Outline, XWiki, and MediaWiki run as server apps with a database. DokuWiki stores everything in plain files, and Docusaurus builds a static site you publish yourself.
• Docmost, Outline, and XWiki support live, simultaneous editing, which matters most when several people want to work in the same page at once.
• The main reason to self-host documentation is control: your data stays on your servers and your team sets the security rules.

Self-hosted documentation tools run on infrastructure you control, not a vendor's servers. That difference is important when a security questionnaire, a compliance requirement, or a contract asks where your internal documentation lives and who can access it.

Running your docs on your own infrastructure changes three things. Your data never leaves infrastructure you control. You define your own compliance posture, including access controls, encryption, and retention, instead of inheriting a vendor's. And hosting, backups, upgrades, and security patching become your IT team's responsibility.

The eight tools below all let you own the setup, but they're built for different jobs. Some are team wikis where anyone can write and edit in the browser. Others are static site generators that turn Markdown files into a docs website, which suits developers more than a mixed team.

Self-Hosted Documentation Tools Compared

If you're weighing two of these head to head, see how Wiki.js compares to BookStack.

1. Docmost: Best for Compliance-Focused Knowledge Bases

Docmost is an open-source wiki and documentation platform for teams that want a modern editor and live collaboration without handing their data to a hosted vendor. It fits internal knowledge bases and technical documentation, especially at organizations with strict security or compliance requirements. Teams at the Australian Government and the German Red Cross use it.

Docmost's Standout Features

• Real-time collaborative editing. Several people can work in the same page and see each other's changes as they type.
• Built-in diagramming. Draw.io, Excalidraw, and Mermaid are part of the editor, so you can build flowcharts and architecture diagrams without switching tools.
• Spaces and groups with their own permissions. You decide who sees and edits each space, and the paid edition adds page-level permissions for individual pages.
• Version history and inline comments. Track every change and review drafts together on the page.
• Enterprise identity on the paid edition. SSO through SAML and OIDC, LDAP, SCIM user provisioning, and multi-factor authentication.

Docmost Pricing

The community edition is free and open source, and you can run it on your own servers. The paid edition adds enterprise features like SSO, SCIM, page-level permissions, and the Confluence importer. You'll find plan details on the Docmost pricing page.

If your team is moving off a hosted wiki, see how Docmost compares to Confluence feature by feature.

2. Wiki.js: Best for Lightweight Open-Source Wikis

Wiki.js is a Node.js wiki with a clean interface and a long list of login options. It works well for small technical teams that want a simple wiki they can set up quickly and write in Markdown.

Wiki.js's Standout Features

• Many authentication providers. It supports LDAP, SAML, and popular social logins out of the box.
• A choice of editors. Writers can pick a Markdown editor or a visual editor.
• Git sync. Pages can sync to a Git repository, which gives developers a familiar backup and history.
• One editor at a time. It doesn't offer real-time collaboration, so it suits teams that rarely work in the same page together.

Wiki.js Pricing

Wiki.js is free and open source under the AGPL-3.0 license. There's no paid edition.

For a closer look at how it stacks up against another tool on this list, read our Wiki.js vs BookStack comparison, or see how Docmost compares to Wiki.js.

3. BookStack: Best for Simple, Book-Style Documentation

BookStack organizes documentation like a library. Shelves hold books, books hold chapters, and chapters hold pages. Non-technical teams pick it up fast because the structure makes sense before anyone explains it.

BookStack's Standout Features

• A structure everyone understands: Every doc has an obvious home in the shelf, book, chapter, and page layout.
• Two editors: A WYSIWYG editor comes as the default, with a Markdown editor if you prefer it.
• Built-in login options: LDAP, SAML2, and OIDC are supported, along with multi-factor authentication you can require for specific roles.
• Diagrams through Draw.io: You can add diagrams to pages without a separate tool.

BookStack Pricing

BookStack is free and open source under the MIT license, with no paid edition.

See how Docmost compares to BookStack if you want to weigh the two side by side.

4. Outline: Best for Fast Search and Slack-Native Teams

Outline is a fast, polished knowledge base built for teams that already spend their day in Slack. It supports real-time editing and puts a lot of weight on quick search.

One thing to check before you pick it: Outline's code is public, but it's released under the Business Source License, which isn't an OSI-approved open-source license. If an open-source license is a hard requirement for your team, read its terms before you commit.

Outline's Standout Features

• Real-time collaborative editing: It comes with Markdown shortcuts for fast writing.
• Full-text search: Search runs across your whole workspace.
• Deep Slack integration: Search and share docs from inside Slack.
• No password login: You sign in through a provider like Slack, Google, or an OIDC service, or by email link once you've set up an email server. Plan for one of these before you self-host.

Outline Pricing

The self-hosted version is free to run for your own organization. Its license stops you from offering it to other companies as a paid document service. There's also a paid cloud version if you'd prefer Outline to host it for you.

See how Docmost compares to Outline for a closer look at the two.

5. XWiki: Best for Developers Who Want a Scriptable Wiki

XWiki is a Java wiki that doubles as a platform for building small internal apps. Developers like it because you can script pages, add structured data, and extend it with a large library of extensions.

XWiki's Standout Features

• Scripting: Velocity and Groovy let you build dynamic pages and custom logic.
• Apps inside the wiki: You can create structured data and simple apps without leaving XWiki.
• A large extension library: Extensions cover login options, macros, and integrations.
• Real-time editing: Since version 16.9, several people can edit a page in the visual editor at once, with no extra setup.

XWiki Pricing

XWiki is free and open source under the LGPL-2.1 license. XWiki SAS, the company behind it, sells paid support plans, extra Pro extensions, and cloud hosting.

See how Docmost compares to XWiki if you're choosing between the two.

6. Docusaurus: Best for React-Based Product Documentation Sites

Docusaurus is a static site generator from Meta for building documentation websites. You write in Markdown or MDX, Docusaurus builds the site, and you publish it on whatever server or host you choose. You own the whole deployment, though there's no app or database to run.

Docusaurus's Standout Features

• Built on React: Teams can drop custom components straight into their docs.
• Versioning: Docs for older releases stay available alongside the current ones.
• Translation support: You can publish your docs in more than one language.
• Git-based editing: Changes go through files and pull requests, which suits developers more than non-technical writers.

Docusaurus Pricing

Docusaurus is free and open source under the MIT license.

7. MediaWiki: Best for Large, Reference-Style Wikis

MediaWiki is the software that runs Wikipedia. It's a mature, PHP-based wiki platform built for large collections of reference pages, with content written in its own wikitext markup instead of a visual editor. Some organizations run it internally for the same reason Wikipedia runs on it: it's free, proven at a massive scale, and backed by a large extension ecosystem.

MediaWiki's Standout Features

• Proven at Wikipedia scale: The same software running some of the largest wikis in the world can run your internal one.
• A large extension ecosystem: Community-built extensions add features like diagrams, LDAP authentication, and semantic data on top of the core software.
• Detailed revision history: Every edit is tracked, and any version can be compared or restored.
• Wikitext markup: Pages are written in MediaWiki's own markup language, which gives structural control but comes with a learning curve for non-technical writers.

MediaWiki Pricing

MediaWiki is free and open source under the GPL, with no paid edition.

See how Docmost compares to MediaWiki if your team is weighing the two.

8. DokuWiki: Best for Teams that Want Zero Database Overhead

DokuWiki is a PHP wiki that stores every page as a plain text file, so there's no database to install or maintain. Backups can be as simple as copying a folder, which appeals to small teams and IT departments that want as few moving parts as possible.

DokuWiki's Standout Features

• Flat-file storage: Pages live as text files with no database behind them.
• Built-in access control lists: You can set permissions by page or by namespace.
• Plugins for everything else: LDAP login comes bundled as a plugin you switch on, and the wider plugin library covers much more.
• Revision history on every page: You can see and restore earlier versions.

DokuWiki Pricing

DokuWiki is free and open source under the GPL-2.0 license.

What's the Best Self-Hosted Documentation Tool?

There's no single best pick here. It depends on how your team writes, how technical your writers are, and whether real-time editing matters to you.

• Choose Docmost if you want real-time collaboration and built-in diagramming without adding a separate compliance tool.
• Choose Wiki.js if you want the widest range of login providers, and one person editing a page at a time works for your team.
• Choose BookStack if your team is non-technical and wants a structure that makes sense without training.
• Choose Outline if your team lives in Slack and wants real-time editing, but check its license terms and plan for an external sign-in provider first.
• Choose XWiki if you need to build custom apps inside the wiki and can support a Java stack.
• Choose Docusaurus if your docs are public-facing, versioned with your product, and your writers work comfortably in Git.
• Choose MediaWiki if you're running a large reference wiki and don't mind the wikitext learning curve.
• Choose DokuWiki if you want the simplest possible backup and hosting setup, with no database to maintain.

Frequently Asked Questions

1. Is Docmost Open Source?

Yes. The community edition of Docmost is open source under the AGPL-3.0 license, and you can self-host it for free. The paid edition adds enterprise features like SSO and SCIM on top.

2. What's the Difference Between a Wiki and Documentation Software?

A wiki is a set of linked pages that anyone with access can create and edit, usually in the browser. Documentation software is a broader term that covers wikis and also tools built for publishing formal docs, like product manuals or API references. Many teams use a wiki like Docmost for internal knowledge and a static site generator for public docs.

3. Do I Need Real-Time Collaboration for Technical Documentation?

Not always. If one person writes each doc and others review it later, one-at-a-time editing works fine. Real-time collaboration starts to matter when several people update the same page together, like during an incident or while planning a release, because it stops people from overwriting each other's changes.

4. Can I Move from Confluence or Notion to a Self-Hosted Tool?

Yes. Docmost imports Notion exports in every edition, and its Confluence importer comes with the paid edition. See how Docmost compares to Confluence for what carries over. [Link slot held: How to migrate from Confluence to Docmost, not live yet]

5. Is a Self-Hosted Documentation Tool Harder to Maintain than a Hosted One?

It moves the work to your team. With a hosted tool, the vendor handles the servers. When you self-host, hosting, backups, upgrades, and security patching become your IT team's responsibility. In return, your data never leaves infrastructure you control, and you define your own compliance posture instead of inheriting a vendor's.

Keep Your Documentation on Your Own Servers

If your team needs a documentation tool that runs on your own infrastructure and still feels easy to write in, Docmost was built for that. Contact sales to talk through your setup and see how the paid edition fits your security requirements.