Fastmail vs parcelLab

Fastmail (Open-source software developed at Fastmail.) and parcelLab (Take full control of your post-checkout customer experience.) both appear on the Smoower Developer Ecosystem Index.

parcelLab (rank #278) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (46 vs 40). The gap of 6 points reflects composite signals across code, docs, community and reach.

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

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. parcelLab shows 20 stars across 20 public repos, 10 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 315.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Fastmail is the stronger read for anyone weighting reach. parcelLab 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.