edX vs Mattermost

edX (Online learning at https://edx.org, powered by the Open edX platform https://openedx.org) and Mattermost (Mattermost is a secure collaboration platform for connecting your teams, tools and processes to accelerate mission-critical work.) both appear on the Smoower Developer Ecosystem Index.

Mattermost (rank #38) holds a modest lead over edX (rank #338) on the overall Smoower ecosystem score (62 vs 43). The gap of 19 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 edX. On education (docs, guides and learning material for developers), Mattermost is clearly ahead of edX. On community (issue response, PR reviews and discussion health), Mattermost is clearly ahead of edX. On reach (how visible the ecosystem is beyond its own repos), Mattermost is clearly ahead of edX. On momentum (release cadence and how fast the ecosystem moves), Mattermost is clearly ahead of edX.

edX carries 392 GitHub stars across 250 public repos, with 52 repositories active in the last 90 days and 22 external contributors on record. Mattermost shows 49,882 stars across 262 public repos, 58 active in the last 90 days and 105 external contributors. The star gap on its own does not decide the comparison, but Mattermost's footprint is roughly 127.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

edX is worth a look for teams already invested in its stack. Mattermost looks better where reach 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.