Open Knowledgebase

The open-source alternative to Confluence — your knowledge, your control.

Confluence licensing costs add up fast, and migrating away feels impossible. A Drupal-powered knowledgebase gives your organization the same capabilities — structured content, powerful search, version history — without per-user fees, without vendor lock-in, and with full control over where your data lives.

The Challenges

Knowledge management tools often create the problems they're meant to solve:

  • Per-user costs — Confluence and similar tools become expensive as teams grow
  • Vendor lock-in — Migrating away from proprietary platforms is painful
  • Limited customization — Can't adapt the tool to your specific workflows
  • Data sovereignty — SaaS tools store data outside your control
  • Information silos — Knowledge scattered across wikis, drives, emails, and chat
  • Search quality — Degrades as the knowledge base grows

Drupal vs. Confluence

Aspect

Confluence

Drupal Knowledgebase

Licensing

Per-user fees

Open source (free)

Customization

Limited

Fully customizable

Data control

Atlassian cloud

Self-hosted or managed (EU)

Search

Built-in (basic)

OpenSearch / Elasticsearch

AI features

Extra cost

Integrated via Drupal AI [3]

Vendor lock-in

High

None

Integration

Atlassian ecosystem

Open APIs, any system

Key Benefits

Drupal addresses these challenges with a knowledge platform built for findability, control, and scale:

  • No license fees — Open source — scales without cost surprises and frees you from vendor lock-in
  • Structured content — Categories, tags, and templates for consistent documentation — a single source of truth instead of scattered silos
  • Full-text search — OpenSearch-powered with facets, filters, and relevance ranking — search that stays fast as your knowledge base grows
  • AI-powered — Smart search, content suggestions, and automated categorization — keeping knowledge discoverable at scale [3]
  • Access permissions — Public, internal, team-specific, or confidential content — your data stays under your control
  • Version history — Track every change, compare revisions, revert when needed

Why drunomics?

We bring deep search and content platform expertise to build knowledgebases that scale:

  • Search expertise — Extensive experience with OpenSearch/Elasticsearch for content-heavy applications
  • AI integration — Active contributor to the Drupal AI initiative (Silver Maker level) [3]
  • Proven at scale — Large-scale content platforms in production (VW InfoPortal [4], publishing platforms)
  • Migration support — We help you transition from Confluence or other platforms
  • EU-hostedmossbo cloud on Austrian/EU data centers, full data sovereignty [6]

Sources

  1. OpenAlternative — 9 Best Open Source Confluence Alternatives — Competitive landscape overview
  2. Typemill — Best Open Source Knowledge Base Software 2025 — Comprehensive comparison of open-source KB tools
  3. drunomics joins Drupal AI Initiative as Silver Maker — AI capabilities for content management
  4. Volkswagen AG InfoPortal — Drupal.org case study — Large-scale information/knowledge platform by drunomics
  5. The European Accessibility Act Impacts Everyone — Customer-facing knowledgebases must be accessible under EAA
  6. mossbo — Cloud CMS Platform — drunomics' managed Drupal cloud platform with EU hosting and full data sovereignty

Ready for an open knowledge solution?

Let's talk about your knowledgebase — get in touch for a no-obligation consultation.

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