The best open source alternative to XWiki is Affine. If that doesn't suit you, we've compiled a ranked list of other open source XWiki alternatives to help you find a suitable replacement. Other interesting open source alternatives to XWiki are: AppFlowy, Outline, and Docmost.
XWiki alternatives are mainly Collaborative Notes & Wikis but may also be Wiki Software or Internal Knowledge Bases. Browse these if you want a narrower list of alternatives or looking for a specific functionality of XWiki.
All-in-one workspace for note-taking, whiteboarding, and task management with real-time collaboration and local-first architecture.

Affine is a powerful, open-source platform that revolutionizes the way teams and individuals create, organize, and share knowledge. With its innovative approach to collaborative work, Affine combines the best features of note-taking, whiteboarding, and task management into a seamless, intuitive interface.
Key benefits of Affine include:
Affine's unique blend of features makes it an ideal choice for researchers, project managers, designers, and anyone looking to enhance their productivity and creativity. Experience the future of collaborative knowledge work with Affine.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
An open-source alternative to Notion, offering powerful note-taking, task management, and database features in a customizable interface.

AppFlowy is a versatile, open-source productivity tool that combines the best features of note-taking apps and project management software. It provides a flexible workspace where you can organize your thoughts, tasks, and projects with ease.
Key benefits of AppFlowy include:
AppFlowy combines the flexibility of a note-taking app with the structure of a project management tool, allowing you to capture ideas, plan projects, and organize information all in one place. Whether you're a student, professional, or creative, AppFlowy adapts to your needs, helping you stay organized and productive.
Secure, fast, and beautiful wiki platform that scales with your team, integrating seamlessly with your existing tools.

Outline is a powerful, open-source wiki and knowledge base platform designed for modern teams. It offers a clean, intuitive interface that makes documenting and sharing information effortless.
Key benefits of Outline include:
Outline prioritizes security with features like SSO, 2FA, and granular access controls. Its sleek, minimalist design ensures a distraction-free writing environment, while its responsive layout adapts seamlessly to any device. Whether you're documenting processes, collaborating on projects, or building an internal knowledge base, Outline provides the tools you need to keep your team aligned and productive.
A feature-rich wiki platform with real-time collaboration, rich-text editing, advanced permissions, and support for diagrams, translations, and file management.

Docmost transforms team documentation with its powerful collaborative features. The real-time rich-text editor supports simultaneous editing with integrated tools for diagrams (Mermaid, Draw.io, Excalidraw), tables, math equations, and embedded content.
Organization is seamless with nested pages and dedicated spaces for different teams or projects. The robust permissions system with group management ensures precise access control. Content discovery is efficient through Postgres-powered full-text search.
Notable features include:
The platform combines security, flexibility, and ease of use while avoiding vendor lock-in through open standards. Perfect for companies seeking a self-hosted solution for knowledge management, technical documentation, and team collaboration.