Coursera vs Fastmail

Coursera and Fastmail (Open-source software developed at Fastmail.) both appear on the Smoower Developer Ecosystem Index.

Fastmail (rank #432) holds a modest lead over Coursera (rank #726) on the overall Smoower ecosystem score (40 vs 30). The gap of 10 points reflects composite signals across code, docs, community and reach.

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

Coursera carries 1,367 GitHub stars across 81 public repos, with 1 repositories active in the last 90 days and 0 external contributors on record. Fastmail shows 6,317 stars across 38 public repos, 12 active in the last 90 days and 3 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 4.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Coursera is the stronger read for anyone weighting code quality. Fastmail 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.