Mattermost vs Zeplin

Mattermost (Mattermost is a secure collaboration platform for connecting your teams, tools and processes to accelerate mission-critical work.) and Zeplin both appear on the Smoower Developer Ecosystem Index.

Mattermost (rank #40) holds a meaningful lead over Zeplin (rank #430) on the overall Smoower ecosystem score (62 vs 40). The gap of 22 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 Zeplin. On education (docs, guides and learning material for developers), Zeplin is ahead of Mattermost. On community (issue response, PR reviews and discussion health), Mattermost is ahead of Zeplin. On reach (how visible the ecosystem is beyond its own repos), Mattermost is clearly ahead of Zeplin. On momentum (release cadence and how fast the ecosystem moves), Mattermost is clearly ahead of Zeplin.

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. Zeplin shows 1,460 stars across 57 public repos, 8 active in the last 90 days and 4 external contributors. The star gap on its own does not decide the comparison, but Mattermost's footprint is roughly 34.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Mattermost is the stronger read for anyone weighting momentum. Zeplin 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.