Klaviyo vs Segment

Klaviyo and Segment both appear on the Smoower Developer Ecosystem Index.

Segment (rank #103) holds a narrow lead over Klaviyo (rank #237) on the overall Smoower ecosystem score (55 vs 48). 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), Segment is slightly ahead of Klaviyo. On education (docs, guides and learning material for developers), Segment is ahead of Klaviyo. On community (issue response, PR reviews and discussion health), Segment is slightly ahead of Klaviyo. On reach (how visible the ecosystem is beyond its own repos), Klaviyo is slightly ahead of Segment. On momentum (release cadence and how fast the ecosystem moves), Segment is ahead of Klaviyo.

Klaviyo carries 573 GitHub stars across 117 public repos, with 23 repositories active in the last 90 days and 17 external contributors on record. Segment shows 58,406 stars across 421 public repos, 53 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but Segment's footprint is roughly 101.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Klaviyo is the stronger read for anyone weighting reach. Segment looks better where education 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.