BookStack
A wiki organised as books, chapters, and pages. MIT.
Free team docs, with no per-seat licence
Wikis and note systems that replace Notion or Confluence. A few use source-available licences. Those carry a Caution badge so the paperwork is visible before you migrate.
Wiki.js
A general-purpose wiki with a visual editor. AGPL.
Docmost
A team wiki under AGPL, with Docker Compose.
Outline
A fast team wiki on the Business Source Licence.
AppFlowy
Notes and databases, with a desktop app, under AGPL.
AFFiNE
Notes and a whiteboard. Production use of the official server needs a subscription.
Questions owners ask
What is a free docs and wiki tool a small business can actually run?
BookStack is the highest measured score in this category right now (56). A wiki organised as books, chapters, and pages. MIT. The score only counts signals we could verify.
Does “no licence cost” mean the software is finished and supported?
No. It means you are not paying a vendor per seat or per contact for the right to use it. You still pay for a server, email delivery, or someone’s time. Archived and source-available projects are marked.
Are SeatLess apps placed first?
No. SeatLess apps are scored on the same rules and sorted by the measured score. They have no public repository, so GitHub health points are omitted and they do not float to the top.
Related: Project management. Team chat.