Open Source XWiki Alternatives

AFFiNE is an open-source workspace that brings together structured documents, freeform whiteboards, and databases under one roof. Instead of maintaining separate tools for writing, visual planning, and data organization, everything lives in a single connected environment. It's built around a local-first architecture, meaning your data stays on your device by default rather than being handed off to a cloud service.

The core idea is that knowledge work rarely fits into one mode. A project might start as a brainstorm on a whiteboard, become a structured document, and eventually need a database to track tasks or decisions. AFFiNE treats these as parts of the same thing rather than separate applications. Blocks are the building unit across all three modes, so content can move between a written page and a visual canvas without friction.

AI assistance is built into the writing, drawing, and planning workflows. It can help draft content, summarize notes, and support ideation without requiring a separate tool or tab switch.

AFFiNE works for individuals and teams. Solo users get a private, local-first notebook with visual tools. Teams can collaborate on shared knowledge bases, document decisions, map out project plans, and keep related material connected. Ready-to-use templates cover common project types to reduce setup time.

The project is fully open source under the Toeverything organization. The codebase is auditable and community contributions are accepted. A free tier covers individual use. Commercial and team usage requires a paid plan.

It's a practical alternative to combining Notion with a whiteboard tool and a separate database app. Tools like AppFlowy and AnyType occupy similar territory for privacy-focused users, though neither merges the whiteboard mode as directly. If you want Atlassian Confluence-style team docs but with local-first storage and visual planning built in, AFFiNE covers that ground in a single install.

AppFlowy is an open source workspace that brings together documents, wikis, project tracking, and team collaboration in one place. It's built as a self-hostable alternative to tools like Notion, designed for people who want a modern workspace without handing their data to a third-party cloud.

The core of the product is a block-based editor paired with flexible databases. You can build pages with rich content types, attach properties and labels to records, and switch between different views of the same data. Grids, boards, and calendars are all available. Custom themes and fonts let you adjust the look to your preference.

AI is built directly into the workspace, not bolted on as a separate add-on. You can ask questions across your pages, generate and improve writing, and autofill database fields from existing content. AppFlowy supports multiple AI backends including GPT-5, Gemini 2.5, and Claude 3.7, and it also supports running local models like Mistral 7B and Llama 3 on your own machine. That local option matters for teams or individuals who need AI assistance without sending data to external servers — something tools like Flowise AI or Langflow approach from a different angle.

Offline mode is fully supported. The app works without an internet connection and syncs when connectivity returns, across desktop and mobile. iOS and Android apps are available alongside the desktop clients.

Self-hosting is a first-class option, not a workaround. You can run AppFlowy on your own infrastructure with no vendor lock-in. For teams that can't store sensitive information in someone else's cloud, this is a practical path. If you're also evaluating Baserow for database-heavy workflows or OpenWork for team collaboration, AppFlowy sits at the intersection of both.

The project has over 400 contributors and a community spanning more than 215 countries. A plugin and template ecosystem is actively growing, which extends the toolbox beyond what ships by default.

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:

• Real-time collaboration: Work together on documents simultaneously, with changes synced instantly across all devices.
• Markdown support: Write and format content easily using familiar Markdown syntax.
• Powerful search: Find information quickly with full-text search and customizable filters.
• Integrations: Connect with popular tools like Slack, Google Docs, and Figma to streamline your workflow.
• Version history: Track changes and revert to previous versions of any document with ease.
• Customizable structure: Organize your knowledge base with a flexible hierarchy of collections and nested documents.
• Self-hosted option: Maintain full control over your data with the ability to self-host Outline on your own infrastructure.
• API access: Extend functionality and integrate Outline into your existing systems using the robust API.

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.

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:

• Inline commenting for team discussions
• Comprehensive page history and version control
• File attachments with S3 or local storage support
• Import/export in Markdown and HTML formats
• Multilingual interface available in 10+ languages
• Built-in diagramming tools for technical documentation

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.