Mattermost vs Yoast

Mattermost (Mattermost is a secure collaboration platform for connecting your teams, tools and processes to accelerate mission-critical work.) and Yoast (This is where the Yoast.com team shares its public code: from our WordPress plugins to other small projects.) both appear on the Smoower Developer Ecosystem Index.

Mattermost (rank #40) holds a modest lead over Yoast (rank #209) on the overall Smoower ecosystem score (62 vs 49). The gap of 13 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Mattermost is ahead of Yoast. On education (docs, guides and learning material for developers), Yoast is slightly ahead of Mattermost. On community (issue response, PR reviews and discussion health), Mattermost is slightly ahead of Yoast. On reach (how visible the ecosystem is beyond its own repos), Mattermost is clearly ahead of Yoast. On momentum (release cadence and how fast the ecosystem moves), Mattermost is clearly ahead of Yoast.

Mattermost carries 49,882 GitHub stars across 262 public repos, with 58 repositories active in the last 90 days and 105 external contributors on record. Yoast shows 3,439 stars across 78 public repos, 12 active in the last 90 days and 21 external contributors. The star gap on its own does not decide the comparison, but Mattermost's footprint is roughly 14.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Mattermost is the stronger read for anyone weighting reach. Yoast looks better where education is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.