Brex vs Fastmail

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

Brex (rank #257) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (47 vs 40). The gap of 7 points reflects composite signals across code, docs, community and reach.

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

Brex carries 10,822 GitHub stars across 84 public repos, with 28 repositories active in the last 90 days and 13 external contributors on record. Fastmail shows 6,316 stars across 38 public repos, 12 active in the last 90 days and 2 external contributors.

Brex 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.