Mattermost significantly outpaces Stoat in community adoption with 38,727 stars compared to 3,213 stars on GitHub. This 12.1x difference suggests Mattermost has a much larger and more active community. In terms of developer contributions, Mattermost has 8,894 forks, indicating strong developer engagement.

Stoat is growing faster, adding 65 stars in the last 30 days (+2.1%) against adding 318 stars for Mattermost (+0.8%). Stoat is the smaller project of the two, so it is closing the gap rather than extending a lead.

Both projects show recent activity, with Mattermost last updated 1 hour ago and Stoat 23 hours ago.

Both tools share common technology foundations, being built with Bash. However, they differ in their additional technology choices: Mattermost uses JavaScript, CSS, Typescript, JSX, SCSS, Golang while Stoat leverages Python, Rust.

Mattermost has been in development longer, starting 11 years ago, compared to Stoat which began 5 years ago. This 6.1-year head start suggests Mattermost may have more mature features and established processes.

Both tools serve similar use cases in Team Chat & Messaging, Encrypted Communication. However, they also have distinct specializations: Mattermost also focuses on Collaborative Workspaces.

Both Mattermost and Stoat offer self-hosting capabilities, giving you full control over your data and infrastructure.