Mattermost vs Semrush

Mattermost (Mattermost is a secure collaboration platform for connecting your teams, tools and processes to accelerate mission-critical work.) and Semrush (We do love open source and have an opportunity to make it better from now.) both appear on the Smoower Developer Ecosystem Index.

Mattermost (rank #38) holds a modest lead over Semrush (rank #317) on the overall Smoower ecosystem score (62 vs 44). The gap of 18 points reflects composite signals across code, docs, community and reach.

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

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. Semrush shows 454 stars across 11 public repos, 2 active in the last 90 days and 7 external contributors. The star gap on its own does not decide the comparison, but Mattermost's footprint is roughly 109.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Mattermost is the stronger read for anyone weighting reach. Semrush makes more sense for teams already using its adjacent tools. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.