Close vs Fastmail

Close (The inside sales CRM of choice for SMBs) and Fastmail (Open-source software developed at Fastmail.) both appear on the Smoower Developer Ecosystem Index.

Close (rank #298) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (45 vs 40). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

Close carries 3,871 GitHub stars across 190 public repos, with 25 repositories active in the last 90 days and 10 external contributors on record. Fastmail shows 6,316 stars across 38 public repos, 12 active in the last 90 days and 2 external contributors.

Close 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.