With over 140,000 code commits, 1,200+ GitHub stars, and continuous development since 2004 spanning more than two decades of active maintenance through version 18.6.0 released in July 2026, XWiki operates as a second-generation wiki platform that goes beyond static pages by enabling teams to build custom collaborative applications directly inside wiki pages using structured data forms and in-page scripting. The Java backend runs on Apache Tomcat with PostgreSQL, MySQL, or Oracle database storage, serving a responsive web interface with a WYSIWYG editor featuring real-time collaborative editing, link and macro editors, user mentions, inline comments, annotations, and complete version history with diff comparison. The App Within Minutes extension lets non-developers create custom data-driven applications using drag-and-drop form builders that generate filterable live tables for structured data browsing without writing code. Over 900 extensions from the built-in Extension Manager add functionality including blogs, task trackers, forums, diagram editors, and Confluence migration tools. Enterprise integration features include LDAP and Active Directory authentication, SAML and OIDC single sign-on, fine-grained per-page and per-space permissions with nested page hierarchies, and multi-wiki support for hosting multiple independent wikis from a single installation. The RESTful API provides programmatic access to pages, spaces, objects, attachments, and properties with XML and JSON representations. Office document import converts Word and Excel files directly into wiki pages while PDF export generates formatted documents from wiki content. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. LGPL-2.1 licensed.

Every page in a DokuWiki knowledge base is just a plain text file on disk, so a team wiki can run for years on modest hardware with no database to feed, ever. Writers edit pages in a clean, readable syntax, fix just one section of a long document at a time, and lean on the toolbar, breadcrumbs, automatic tables of contents, and conflict locking to keep collaboration painless. Every change is kept as a revision with colored side-by-side diffs, recent-changes feeds go out over RSS, and an index-based full-text search finds content across thousands of pages in milliseconds. Namespaces organize content into a browsable tree, while built-in access control lists decide per page or per branch who may read, edit, upload, or administer, with logins checked against LDAP and other backends. Media uploads embed straight into pages, configuration happens in the browser, and the whole installation backs up by copying a folder, which makes migrations and disaster recovery almost boringly simple. When the basics stop being enough, more than twelve hundred community plugins and a hundred templates add galleries, multilingual structures, diagrams, and data tables without changing how the wiki itself works. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-2.0 licensed.

Most wikis die of flat page-and-tag sprawl; BookStack's defining decision is enforced structure - an MIT-licensed PHP/Laravel platform (over MySQL) where content lives in a hierarchy of shelves, books, chapters, and pages, the way a physical library works. A shelf maps to a department, a book to "Engineering Runbooks," a chapter to "Database Procedures," a page to the actual document. That opinionation removes the "where does this go?" friction and keeps knowledge bases tidy as they grow. Editing works both ways: a clean WYSIWYG editor for most users, a Markdown editor with live preview for those who prefer it - switchable per page. Full-text search spans all books or scopes to one, with direct links to individual paragraphs, and include tags let you embed one page's content inside another so shared blocks update everywhere at once. Every edit creates a diffable, revertible revision. Page templates standardize recurring formats, tags add cross-cutting categorization, and built-in diagrams.net integration draws architecture diagrams in place. Authentication covers email/password plus OIDC, SAML2, LDAP, and social login; a full role and permission system locks content down per shelf, book, or page. Pages and books export to PDF, HTML, plain text, and Markdown, a REST API automates content, and the whole thing runs happily on the cheapest VPS you can find.

With MediaWiki, the wiki software behind Wikipedia, a team writes one shared knowledge base in plain wikitext or a visual editor while every revision stays saved for comparison and rollback. Page history names the author and edit summary of each change, and a side-by-side diff shows exactly what moved before anyone reverts. Talk pages hold threaded discussions with inline replies, notifications announce mentions and thanks, and watchlists flag the pages you follow. Namespaces, categories, redirects, and reusable templates give a large wiki its structure, and Lua modules written for Scribunto power infoboxes. Uploaded images get automatic thumbnails and a full-screen lightbox. Bundled extensions add PDF handling and math rendering for documentation that needs more than text. Group-based permissions decide who may read, edit, protect, or delete. A wiki can stay open to everyone or sit behind a login. AbuseFilter, CAPTCHAs, blocklists, and two-factor sign-in help fend off spam and account takeovers. Vector 2022 brings a sticky table of contents and an optional dark mode. The interface is localized in over 350 languages. Bots and scripts log in, read, search, and edit with the Action API. Use it for company handbooks, engineering runbooks, course notes, fandom encyclopedias, and public reference sites. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-2.0-or-later licensed.

Team and product documentation on a fast Vue frontend with PostgreSQL storage: Wiki.js is a Node.js wiki engine. Its distinguishing trait is per-page editor choice: authors pick Markdown with live preview, a WYSIWYG visual builder for non-technical writers, or raw HTML, page by page. Native Git synchronization commits every page change to GitHub, GitLab, Bitbucket, Azure DevOps, or any Git remote - bi-directionally, so edits made in the repository flow back into the wiki - giving documentation version-controlled backup for free. Authentication coverage is among the broadest of any self-hosted wiki: local accounts with self-registration, social login via Google, GitHub, Discord, and Slack, and enterprise SSO through LDAP/Active Directory, SAML, CAS, Auth0, Okta, Azure AD, Keycloak, and generic OAuth2/OIDC, with optional MFA. Built-in full-text search runs on PostgreSQL with zero setup, and external engines like Algolia or Solr can substitute. Page history with visual version comparison, granular group-based permissions per path, nested navigation menus, 50+ integration modules, and full localization round it out. AGPLv3-licensed with a 28k-star community.

Enterprise documentation discipline without enterprise infrastructure: Documize Community is the Confluence alternative built on exactly that trade. The entire platform - Go backend, Ember.js frontend - compiles to a single executable binary for Linux, Windows, and macOS with zero runtime dependencies: no Elasticsearch, no Redis, no JVM. Point it at PostgreSQL, MySQL, MariaDB, Percona, or Microsoft SQL Server (rare in open source, decisive in Microsoft shops), and schema migrations run on launch with native full-text search on whichever engine you chose. Content organization rejects nested-folder sprawl for Spaces, categories, and labels, and the section-based composable editor mixes rich text, Markdown, code blocks, PDFs, diagrams, and embedded Jira or Trello content in one document, with reusable blocks and templates so teams start from standards rather than blank pages. It deliberately unifies internal team docs and customer-facing documentation in one system with granular space-, document-, and action-level permissions deciding who sees what. Where wikis stop, Documize continues: content approval workflows (draft, review, approve, publish), version management, lifecycle control, feedback capture, PDF export, analytics showing what gets read and ignored, activity streams, and audit logs. Keycloak, LDAP, and SSO integrate for enterprise auth. AGPL-licensed.

Confluence and Notion both want your team's documentation in their cloud; Docmost, an open-source collaborative wiki platform, keeps it on your server. The centerpiece is a Notion-style block editor with CRDT-based real-time collaboration: multiple people edit the same page simultaneously and changes merge without conflicts or overwrites. Content lives in spaces - per team, project, or department - with nested page trees, role-based permissions, groups, inline comments, page history with restore, and full-text search across everything. The editor covers tables, code blocks, callouts, KaTeX math, and file attachments, and diagramming is built in rather than bolted on: Mermaid, Draw.io, and Excalidraw all render inside pages, alongside embeds for Airtable, Loom, Miro, and more. Migration paths include Notion, Markdown, HTML, and ZIP archive imports (Confluence, PDF, and DOCX importers ship in the Enterprise edition, along with SSO via SAML/OIDC/LDAP and MFA). The stack is TypeScript with PostgreSQL and Redis, deploys via Docker Compose, runs in air-gapped environments with no external dependencies, and is translated into 10+ languages. The AGPL-3.0 community edition carries no per-seat fees; the project has passed 20,000 GitHub stars since its 2024 launch.

Write your knowledge as plain Markdown files, and WikiDocs turns the folder into a searchable, versioned wiki with no database to set up or back up. Pages carry YAML front matter, so the whole wiki can be copied, archived, or opened in any text editor. An editor with a formatting toolbar handles headings, lists, task lists, links, and images, and pictures can be pasted straight from the clipboard. Math is typeset with KaTeX, Mermaid renders diagrams such as ER models and mind maps, and code blocks get syntax highlighting. Every save keeps a revision, a versions dialog lists them, and deleted pages wait in a trash where they can be restored or erased. Attachments upload and download from any page, namespaces build a page tree in the sidebar with pinned pages on top, and full-text search highlights every match. Public mode publishes a read-only knowledge base, private mode requires sign-in, and administrator and user accounts are managed in the app. Settings cover the wiki title, owner notice, privacy banner, language, timezone, light or dark template, and accent color, and every page has a print button. A desktop app keeps files on your computer and syncs with your self-hosted instance, while a REST API with Swagger documentation lets other tools read and write pages. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Wiki-Go turns a folder of Markdown files into a searchable team wiki with page history, comments, and access rules, and never asks you to run a database. Pages live in a nested tree with a sidebar and breadcrumbs, and an editor with a preview toggle handles emoji shortcodes, highlighted code, LaTeX math, Mermaid diagrams, collapsible sections, GitHub-style alerts, and embedded YouTube, Vimeo, or MP4 video. Full-text search supports exact phrases in quotes and term inclusion or exclusion, and highlights each match. Each save keeps a revision, up to a configurable limit, and any stored version can be restored later. Attachments such as PDFs, spreadsheets, images, and archives sit beside the page they belong to. Drop a Kanban board into any document for drag-and-drop task tracking with nested tasks, or build a categorized link library that fills in page metadata automatically. Signed-in users comment in Markdown, and admins can remove comments. Admin, editor, and viewer roles, user groups, path-based public or private rules, and an optional private-wiki mode decide who sees what. Branding comes from a custom logo, banner, and favicon, shortcodes such as stats insert live site statistics, and readers can switch between dark and light themes or print any page. A REST API opens content to scripts, and a community tool imports Notion exports. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.

Every wiki page lives as a plain-text file in a standard Git repository, giving you full version history, branching, merging, and the freedom to edit with any text editor or IDE alongside the web interface. Originally built by GitHub's founders as the engine behind GitHub's own wiki feature, Gollum supports Markdown, AsciiDoc, reStructuredText, Org-mode, Textile, MediaWiki, Creole, and Pod markup formats with live preview rendering as you type. PlantUML and Mermaid diagrams render inline for architecture documentation, MathJax handles mathematical notation, and BibTeX integration via Pandoc provides academic citation management. YAML frontmatter controls per-page sidebars, headers, footers, and table of contents generation. CriticMarkup annotations enable editorial review workflows with tracked insertions, deletions, substitutions, and comments. Macros extend pages with dynamic content injection, file includes, and navigation helpers. The wiki maintains compatibility with GitHub and GitLab wiki repositories, so teams can clone existing platform wikis for local editing and offline access. The official Docker image at gollumwiki/gollum exposes port 4567 with volume-mounted repositories, requiring roughly 170 MB of container storage and minimal RAM. Authentication integrates via OmniAuth supporting GitHub, GitLab, Google, and other OAuth providers. Over 14,300 stars on GitHub since 2009. MIT licensed.

Most wikis bury your writing inside a database you can never quite export cleanly; Mycorrhiza keeps every page as a plain file you can open, edit, and back up with ordinary tools. Each unit of content is a hypha, a page that can be an article, an image, or a video, and hyphae transclude and link to one another so related notes weave into a dense hypertext network instead of a stack of isolated pages. You write in Mycomarkup, a markup language designed to stay unambiguous while remaining quick to type, and categories organize pages without forcing a rigid hierarchy, although nested hyphae are there when you want one. Every edit is committed to Git automatically, giving the wiki a complete, inspectable history, and recent changes flow out as RSS, Atom, and JSON feeds. Keyboard shortcuts drive navigation for people who live in the editor, authorization supports plain accounts or Telegram login, and Open Graph metadata makes shared pages preview properly elsewhere. Interwiki links connect your wiki to others, and because there is no database to provision, a single small binary serves the whole site. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Engineering teams and technical writers maintain operational runbooks, system documentation, and knowledge bases using LeafWiki, an open-source self-hosted wiki that stores page contents directly as human-readable Markdown files on the local filesystem. Authors can compose documentation through a dual-pane editor equipped with live HTML preview, keyboard navigation, autocomplete for internal links, and native rendering for Mermaid diagrams, KaTeX mathematical formulas, and collapsible callout containers. The navigational tree organizes complex documentation into explicit directory hierarchies and custom drag-and-drop page sequences tracked in lightweight configuration files rather than arbitrary alphabetical lists. An integrated SQLite engine indexes page content and custom taxonomy tags for fast full-text searches, automatic incoming backlink tracking, and automated broken link detection. System operators can deploy the single-binary application without external database servers or runtime dependencies, backing up the entire repository by copying the data directory. Administrators can provision granular user roles, configure reverse proxy header authentication for single sign-on gateways, and manage read-only API access keys for automated documentation scripts and continuous integration pipelines. Public viewers can browse technical notes without authentication or switch between dark and light high-contrast themes. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Folio is a self-hosted team wiki that stores every page as a plain Markdown file in a Git repository you own, while your team writes together in the browser in real time. People work in Reading, Live edit, or Source mode, keep editing offline until the connection returns, and watch changes land in the page history as commits they can restore. Data tables with nine column types, filters, and views sit beside the documents, and forms write submissions straight into those tables without requiring an account. Whiteboards, Mermaid diagrams, and a visual diagram editor cover the pictures, while uploads like PDF, Word, Excel, and PowerPoint files open as previewable pages inside the tree. Confluence spaces import with their trees, images, and whiteboards converted, so a migration keeps its structure instead of flattening into a pile of attachments. AI agents read and write the same pages through an MCP server with 41 tools, authenticated by personal tokens or OAuth 2.1, and the built-in assistant answers questions read-only or makes supervised edits. Administrators control access down to a single page, sign people in with SAML, SCIM, or OpenID Connect, hand out expiring share links, and publish a space as a public read-only website. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

When an alert fires at 3 a.m., the live chart, the runbook, and the fix are already on one page of Oxynote, a self-hosted technical wiki. The chart is a Live Metrics block that runs its own Prometheus or SQL query and draws a time series, bar chart, or gauge. Several such blocks side by side make a dashboard inside the page. Around it, the editor works like Notion, with checklists, callouts, titled code blocks, Mermaid diagrams, Figma embeds, images, and files. Internal APIs get Stripe-style reference pages with the endpoint, a curl example, and a sample response beside the explanation. Mark a page reviewable and every edit lands in a draft. A block-aware diff shows renamed endpoints, fields, and reworded sentences in one red and green view until a reviewer approves. Freshness hooks watch GitHub files, container images, web pages, or dates, and remind maintainers when something a page depends on changes. Teammates edit together live and see who holds which block. Comments attach to a word, a diagram line, or a whole chart, with replies and an inbox for mentions. The Rubber Duck assistant edits pages and runs block queries with Anthropic, OpenAI, Google, OpenRouter, or a local Ollama model, and MCP lets Claude Code and Codex read and write the docs. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Alexandrie provides a structured knowledge base with an extended Markdown editor, granular per-document permissions, and offline editing through its progressive web app. The CodeMirror 6 editor goes well beyond standard Markdown with colored containers, academic callout blocks, KaTeX math expressions, syntax-highlighted code blocks, footnotes, interactive checkboxes, cards, panels, and a custom snippet system with import and export. Full-text search via the Ctrl+K command center returns instant results with content snippets and relevance ranking across all workspaces. Five permission levels covering None, Read, Write, Admin, and Owner apply per document and per user, while OIDC single sign-on integrates with Google, GitHub, Microsoft, Discord, and any OpenID Connect provider. Documents organize into a hierarchical tree of workspaces, categories, and nested entries with tags, bookmarks, pinned notes, and custom icons. Integrated Kanban boards handle task management within each workspace without switching applications. The PWA installs on any device for full offline editing with seamless sync when connectivity returns. Voice-to-text dictation captures notes hands-free, and one-click ZIP backup exports all documents, files, and settings as a portable archive. Over 2,000 GitHub stars and 41 releases back the project. The Docker Compose stack orchestrates the Nuxt 4 frontend, Go Gin backend, MySQL 8 database, and S3-compatible RustFS object storage. Running on a VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Your team's knowledge already lives in a folder of Markdown files, and CollabMD turns that exact folder into a shared workspace everyone can edit together in the browser, with nothing to migrate and no database swallowing your notes. Point it at an Obsidian vault, a plain docs directory, or a git-backed repository and the filesystem stays the source of truth: files are never moved, renamed, or deleted unless someone does it deliberately in the app. Several people can type in the same document at once with live cursors and presence indicators, follow a collaborator's view while they present, and drop comments anchored to a specific line or text selection instead of scattering feedback across chat threads. Edits made outside the browser, in Obsidian or any text editor, sync back into open documents automatically, so local and remote work never fork. Diagrams are first-class citizens: Mermaid, PlantUML, Structurizr C4 models, Excalidraw canvases, and draw.io files all open and render beside your prose, and a git panel lets you review changes and commit with a message without leaving the tab. Global full-text search, wiki-links with backlinks, team chat, file uploads, and optional password or Google sign-in round out a workspace that respects how your files already live. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.