Welcome to your guide for open source alternatives to Confluence. If you're looking for a collaborative documentation platform that puts control back in your hands, you're in the right place. Here, we explore tools built for transparency, team autonomy, and freedom from per-user pricing or locked-down data. Let's dive into one of the standout options redefining the knowledge-sharing experience.
Docmost

Docmost is a breath of fresh air in the landscape of collaborative documentation. It breaks away from the SaaS norm, giving teams and communities the ability to manage knowledge freely, without worrying about licensing fees or data silos.
Built with modern collaboration in mind, Docmost brings a real-time editing experience that feels more like a team jam session than a rigid documentation chore. Multiple people can contribute simultaneously. The editor feels rich and expressive, with formatting, tables, diagrams, math notation, and even embedded media all available natively.
Diagrams aren't an afterthought. They’re seamlessly integrated. You can sketch with Excalidraw, lay out flows in Mermaid, or go full diagramming with Draw.io, all without leaving the page. It’s one of those touches that shows Docmost gets what technical and non-technical users actually need.
Spaces give your content natural boundaries, each department, project, or team can have its own area, with flexible permissions to match. You can decide who sees what, and who edits where, with a granular permission system that scales with your team.
Features like inline comments, page version history, and drag-and-drop attachments make Docmost not just powerful but practical. Whether you're uploading assets to S3 or just organizing internal pages, it feels simple, purposeful, and robust.
And because search is powered by full-text Postgres indexing, finding what you’ve written feels instantaneous and reliable.
Docmost speaks your language, literally. With support for over 10 languages, global teams can collaborate in comfort, without barriers.
Best of all? It’s open. You’re free to import, export, and migrate content as needed. Markdown and HTML support make interoperability a breeze. There’s no vendor lock-in, only possibilities.