About Confluence
The team wiki most engineering organisations already run on.
Confluence shipped from Atlassian in 2004 as the docs-and-collaboration sibling to Jira, and it has stayed in that slot for two decades. Today it runs in two main editions: Confluence Cloud, hosted by Atlassian, and Confluence Data Center for organisations that still self-host. Atlassian reports more than 300,000 customers across the product family, and Confluence sits inside a sizeable share of those, especially in software-engineering organisations where Jira is already the system of record for delivery work. The product is built around spaces (one per team, project or topic), pages organised in a tree, blog posts for announcements, and now also Whiteboards, Databases and richer templates aimed at moving more of the day-to-day documentation work onto a single platform.
What makes Confluence different from a free-form workspace like Notion is the structured shape: spaces, page trees, page restrictions, labels, version history and a deep native link into Jira issues, releases and projects. That structure is also what makes it hard to keep clean. A 200-engineer organisation has thousands of pages, hundreds of spaces, runbooks that nobody opens until the on-call alert hits, and decision-log pages that link to Jira tickets that have since been closed, moved or deleted. Pulling Confluence into a warehouse is how those questions stop being a once-a-year wiki gardening project and become a number a content owner can act on.