Klaviyo vs Yoast

Klaviyo and Yoast (This is where the Yoast.com team shares its public code: from our WordPress plugins to other small projects.) both appear on the Smoower Developer Ecosystem Index.

Yoast (rank #209) holds a narrow lead over Klaviyo (rank #237) on the overall Smoower ecosystem score (49 vs 48). The gap of 1 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Yoast is ahead of Klaviyo. On education (docs, guides and learning material for developers), Yoast is ahead of Klaviyo. On community (issue response, PR reviews and discussion health), Klaviyo is slightly ahead of Yoast. On reach (how visible the ecosystem is beyond its own repos), Klaviyo is clearly ahead of Yoast. On momentum (release cadence and how fast the ecosystem moves), Yoast 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. Yoast shows 3,439 stars across 78 public repos, 12 active in the last 90 days and 21 external contributors. The star gap on its own does not decide the comparison, but Yoast's footprint is roughly 6.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Klaviyo is the stronger read for anyone weighting reach. Yoast looks better where momentum 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.