Fastmail vs Humaans

Fastmail (Open-source software developed at Fastmail.) and Humaans (A better workplace starts here) both appear on the Smoower Developer Ecosystem Index.

Fastmail (rank #430) holds a narrow lead over Humaans (rank #662) on the overall Smoower ecosystem score (40 vs 32). The gap of 8 points reflects composite signals across code, docs, community and reach.

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

Fastmail carries 6,316 GitHub stars across 38 public repos, with 12 repositories active in the last 90 days and 2 external contributors on record. Humaans shows 461 stars across 9 public repos, 4 active in the last 90 days and 2 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 13.7x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Fastmail is the stronger read for anyone weighting reach. Humaans looks better where code quality 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.