The alternatives
outline
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.
outline/outline Updated 2026-05-01 wiki
Wiki.js | A modern and powerful wiki app built on Node.js
Requarks/wiki Updated 2026-04-27 wiki
Wiki.js | A modern and powerful wiki app built on Node.js
requarks/wiki Updated 2026-04-20 BookStack
NOW MANAGED ON CODEBERG
BookStackApp/BookStack Updated 2026-05-01 BookStack
A platform to create documentation/wiki content built with PHP & Laravel
bookstackapp/bookstack Updated 2026-04-22 Comparison notes
OSS alternatives typically require self-hosting and operational effort in exchange for predictable cost and full data control. Feature parity varies — evaluate each option against your specific workflow before committing.
Migration tips
- Export data from the SaaS before migration (most provide CSV/JSON exports)
- Pilot the OSS alternative with a subset of your team before full rollout
- Budget for self-hosting infrastructure and maintenance time
FAQ
Can I fully replace Confluence with an OSS tool?
Feature parity varies. Most OSS alternatives cover 70-90% of core workflows, but may lack polish, integrations, or specialized features. Pilot the alternative with a subset of your team before fully committing.
What's the cost of self-hosting?
Plan for ~$5-50/month in VPS costs (DigitalOcean, Hetzner, etc.) plus 2-8 hours/month in maintenance. For a team of 20+, self-hosting usually breaks even against SaaS pricing within 6-12 months.
Which alternative should I pick?
Sort by GitHub stars (a proxy for community health), check the last-pushed date (avoid unmaintained projects), and read recent issues to gauge responsiveness.