Outline significantly outpaces XWiki in community adoption with 40,139 stars compared to 1,295 stars on GitHub. This 31.0x difference suggests Outline has a much larger and more active community. In terms of developer contributions, Outline has 3,478 forks, indicating strong developer engagement.

Outline and XWiki are moving at much the same rate, adding 446 stars and adding 15 stars respectively over the last 30 days (+1.1% vs +1.2%). Neither is pulling away from the other on momentum alone.

Both projects show recent activity, with Outline last updated 3 hours ago and XWiki 3 hours ago.

Both tools share common technology foundations, being built with JavaScript, Typescript. However, they differ in their additional technology choices: Outline uses JSX while XWiki leverages CSS, Bash, Python, Vue, Java.

XWiki has been in development longer, starting 15 years ago, compared to Outline which began 10 years ago. This 5.3-year head start suggests XWiki may have more mature features and established processes.

The projects use different licenses: Outline is licensed under BUSL-1.1 while XWiki uses LGPL-2.1. Consider the licensing requirements when choosing for your project.

Both tools serve similar use cases in Collaborative Notes & Wikis, Wiki Software, Internal Knowledge Bases.

Outline provides self-hosting options for complete data control and customization, while XWiki may be primarily cloud-based or require different deployment approaches.