Fastmail vs Open edX

Fastmail (Open-source software developed at Fastmail.) and Open edX (The community-driven, open-source project powering edX.org and thousands of other online education sites around the world.) both appear on the Smoower Developer Ecosystem Index.

Open edX (rank #372) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (42 vs 40). The gap of 2 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Open edX is clearly ahead of Fastmail. On education (docs, guides and learning material for developers), Fastmail is clearly ahead of Open edX. On community (issue response, PR reviews and discussion health), Open edX is ahead of Fastmail. On reach (how visible the ecosystem is beyond its own repos), Fastmail is clearly ahead of Open edX. On momentum (release cadence and how fast the ecosystem moves), Open edX is clearly 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. Open edX shows 10,654 stars across 186 public repos, 100 active in the last 90 days and 91 external contributors.

Fastmail is the stronger read for anyone weighting reach. Open edX 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.